euiyulsong/threedata · Datasets at Hugging Face

id stringlengths 8 22 ⌀	question stringlengths 17 586 ⌀	choices dict	answerKey stringclasses 9 values	prompt stringlengths 74 739 ⌀	chosen stringlengths 14 159 ⌀	rejected stringlengths 13 146 ⌀	text stringlengths 15 811
Mercury_7181598	The Sun is a medium-sized star and is expected to continue to perform nuclear fusion for five billion years. What is most likely to be the final stage of the Sun?	{ "label": [ "A", "B", "C", "D" ], "text": [ "supernova", "supergiant", "neutron star", "white dwarf" ] }	D	Question: The Sun is a medium-sized star and is expected to continue to perform nuclear fusion for five billion years. What is most likely to be the final stage of the Sun? (A) supernova (B) supergiant (C) neutron star (D) white dwarf	Answer: (D) white dwarf	Answer: (A) supernova	Question: The Sun is a medium-sized star and is expected to continue to perform nuclear fusion for five billion years. What is most likely to be the final stage of the Sun? (A) supernova (B) supergiant (C) neutron star (D) white dwarf Answer: (D) white dwarf
OHAT_2010_5_37	A student sets a block at the top of a wooden ramp. The student pushes the block. As the block slides down the ramp, it slows down and then comes to a stop. What force causes the block to slow down?	{ "label": [ "A", "B", "C", "D" ], "text": [ "the force of gravity", "the force of friction", "the force of magnetism", "the force of the student's push" ] }	B	Question: A student sets a block at the top of a wooden ramp. The student pushes the block. As the block slides down the ramp, it slows down and then comes to a stop. What force causes the block to slow down? (A) the force of gravity (B) the force of friction (C) the force of magnetism (D) the force of the student's push	Answer: (B) the force of friction	Answer: (A) the force of gravity	Question: A student sets a block at the top of a wooden ramp. The student pushes the block. As the block slides down the ramp, it slows down and then comes to a stop. What force causes the block to slow down? (A) the force of gravity (B) the force of friction (C) the force of magnetism (D) the force of the student's push Answer: (B) the force of friction
Mercury_177083	A girl with long hair is going to be participating in an experiment that uses an alcohol burner for an energy source. What is the best thing for her to do to prepare for this experiment?	{ "label": [ "A", "B", "C", "D" ], "text": [ "leave her large jacket in her locker for the day", "use goggles during the experiment", "tie her hair back away from her face", "wear a lab apron during the experiment" ] }	C	Question: A girl with long hair is going to be participating in an experiment that uses an alcohol burner for an energy source. What is the best thing for her to do to prepare for this experiment? (A) leave her large jacket in her locker for the day (B) use goggles during the experiment (C) tie her hair back away from her face (D) wear a lab apron during the experiment	Answer: (C) tie her hair back away from her face	Answer: (A) leave her large jacket in her locker for the day	Question: A girl with long hair is going to be participating in an experiment that uses an alcohol burner for an energy source. What is the best thing for her to do to prepare for this experiment? (A) leave her large jacket in her locker for the day (B) use goggles during the experiment (C) tie her hair back away from her face (D) wear a lab apron during the experiment Answer: (C) tie her hair back away from her face
null	null	null	null	null	null	null	Consumption of fruits rich in flavonoid and vitamin A helps to protect from lung cancer and oral cancer.
null	null	null	null	null	null	null	As noted at the start of this review, marine ecosystems consist of networks of interacting organisms.
null	null	null	null	null	null	null	A particular biome encompasses all of the ecosystems that have similar climate and organisms.
null	null	null	null	null	null	null	Most diets emphasize vegetables.
null	null	null	null	null	null	null	C) Urine has nitrogenous waste such as urea and uric acid.
null	null	null	null	null	null	null	As more water is reabsorbed by the nephron tubules, the volume of blood increases and, as more water is excreted in urine, the volume of blood lowers.
CSZ_2008_5_CSZ10104	Where does oxygen-rich blood go after leaving the lungs?	{ "label": [ "A", "B", "C", "D" ], "text": [ "the brain.", "the heart.", "the kidney.", "the stomach." ] }	B	Question: Where does oxygen-rich blood go after leaving the lungs? (A) the brain. (B) the heart. (C) the kidney. (D) the stomach.	Answer: (B) the heart.	Answer: (C) the kidney.	Question: Where does oxygen-rich blood go after leaving the lungs? (A) the brain. (B) the heart. (C) the kidney. (D) the stomach. Answer: (B) the heart.
Mercury_410744	Some events on Earth happen instantly while others take thousands of years to occur. Which process takes the longest time to complete?	{ "label": [ "A", "B", "C", "D" ], "text": [ "rivers rising due to storms and floods", "evaporation of water from the leaves of a plant", "weathering of a rock to form small rocks and sand", "movement of small pieces of rock by flowing water" ] }	C	Question: Some events on Earth happen instantly while others take thousands of years to occur. Which process takes the longest time to complete? (A) rivers rising due to storms and floods (B) evaporation of water from the leaves of a plant (C) weathering of a rock to form small rocks and sand (D) movement of small pieces of rock by flowing water	Answer: (C) weathering of a rock to form small rocks and sand	Answer: (B) evaporation of water from the leaves of a plant	Question: Some events on Earth happen instantly while others take thousands of years to occur. Which process takes the longest time to complete? (A) rivers rising due to storms and floods (B) evaporation of water from the leaves of a plant (C) weathering of a rock to form small rocks and sand (D) movement of small pieces of rock by flowing water Answer: (C) weathering of a rock to form small rocks and sand
null	null	null	null	null	null	null	Cytoplasm... starts as 2 pyruvates--> turns to ATP
NYSEDREGENTS_2004_8_5	If a species is no longer able to reproduce, it will	{ "label": [ "1", "2", "3", "4" ], "text": [ "adapt to its environment", "become immune to disease", "become extinct", "increase its population" ] }	3	Question: If a species is no longer able to reproduce, it will (1) adapt to its environment (2) become immune to disease (3) become extinct (4) increase its population	Answer: (3) become extinct	Answer: (1) adapt to its environment	Question: If a species is no longer able to reproduce, it will (1) adapt to its environment (2) become immune to disease (3) become extinct (4) increase its population Answer: (3) become extinct
null	null	null	null	null	null	null	The sporophyte generation becomes progressively more dominant in plants
VASoL_2009_5_21	Which of these is most likely harmful to an ecosystem?	{ "label": [ "A", "B", "C", "D" ], "text": [ "Building new homes in a wetland", "Taking away airplanes from an airport", "Planting trees in an orchard", "Adding floors to an office building" ] }	A	Question: Which of these is most likely harmful to an ecosystem? (A) Building new homes in a wetland (B) Taking away airplanes from an airport (C) Planting trees in an orchard (D) Adding floors to an office building	Answer: (A) Building new homes in a wetland	Answer: (C) Planting trees in an orchard	Question: Which of these is most likely harmful to an ecosystem? (A) Building new homes in a wetland (B) Taking away airplanes from an airport (C) Planting trees in an orchard (D) Adding floors to an office building Answer: (A) Building new homes in a wetland
Mercury_SC_400861	Which object best reflects light?	{ "label": [ "A", "B", "C", "D" ], "text": [ "gray door", "white floor", "black sweater", "brown carpet" ] }	B	Question: Which object best reflects light? (A) gray door (B) white floor (C) black sweater (D) brown carpet	Answer: (B) white floor	Answer: (A) gray door	Question: Which object best reflects light? (A) gray door (B) white floor (C) black sweater (D) brown carpet Answer: (B) white floor
null	null	null	null	null	null	null	Most carnivores use sound.
null	null	null	null	null	null	null	Some forces have effects.
null	null	null	null	null	null	null	For S. pombe, however, the asexual reproduction is done via fission, from which two daughter cells of equal size are produced.
Mercury_7041493	All these statements concerning galaxies are accurate except	{ "label": [ "A", "B", "C", "D" ], "text": [ "They contain millions of stars.", "Most can be seen without a telescope.", "They are millions of light-years apart.", "Space contains several billion galaxies." ] }	B	Question: All these statements concerning galaxies are accurate except (A) They contain millions of stars. (B) Most can be seen without a telescope. (C) They are millions of light-years apart. (D) Space contains several billion galaxies.	Answer: (B) Most can be seen without a telescope.	Answer: (D) Space contains several billion galaxies.	Question: All these statements concerning galaxies are accurate except (A) They contain millions of stars. (B) Most can be seen without a telescope. (C) They are millions of light-years apart. (D) Space contains several billion galaxies. Answer: (B) Most can be seen without a telescope.
null	null	null	null	null	null	null	The spectral distribution of the incident light will be quite markedly different in all three cases, with the result that for any given phytoplankton population, with a given absorption spectrum, a will have a different value for each light source because the effective specific absorption coef- ficient, _ af*, for the incident PAR will be different for each light source.
Mercury_SC_416102	Plants need iron to grow. What parts of plants take in iron?	{ "label": [ "A", "B", "C", "D" ], "text": [ "roots", "flowers", "stems", "leaves" ] }	A	Question: Plants need iron to grow. What parts of plants take in iron? (A) roots (B) flowers (C) stems (D) leaves	Answer: (A) roots	Answer: (B) flowers	Question: Plants need iron to grow. What parts of plants take in iron? (A) roots (B) flowers (C) stems (D) leaves Answer: (A) roots
Mercury_SC_401159	A student adds sugar, spices, and salt to a bowl of peanuts and stirs them together. What has the student made?	{ "label": [ "A", "B", "C", "D" ], "text": [ "a compound", "a substance", "a mixture", "a solution" ] }	C	Question: A student adds sugar, spices, and salt to a bowl of peanuts and stirs them together. What has the student made? (A) a compound (B) a substance (C) a mixture (D) a solution	Answer: (C) a mixture	Answer: (A) a compound	Question: A student adds sugar, spices, and salt to a bowl of peanuts and stirs them together. What has the student made? (A) a compound (B) a substance (C) a mixture (D) a solution Answer: (C) a mixture
ACTAAP_2008_5_11	With a microscope, you see that an object has a cell wall, a chloroplast, and a nucleus. What is being observed?	{ "label": [ "A", "B", "C", "D" ], "text": [ "a plant cell", "an animal cell", "a male organism", "a female organism" ] }	A	Question: With a microscope, you see that an object has a cell wall, a chloroplast, and a nucleus. What is being observed? (A) a plant cell (B) an animal cell (C) a male organism (D) a female organism	Answer: (A) a plant cell	Answer: (C) a male organism	Question: With a microscope, you see that an object has a cell wall, a chloroplast, and a nucleus. What is being observed? (A) a plant cell (B) an animal cell (C) a male organism (D) a female organism Answer: (A) a plant cell
null	null	null	null	null	null	null	Some families include other animals.
null	null	null	null	null	null	null	Question: What are the monkeys in the Atlas Mountains known for? (A) Singing beautiful songs (B) Stealing grain (C) Building nests (D) Hunting for prey Answer: (B) Stealing grain
null	null	null	null	null	null	null	<i>The role elephants play in the food chain is the herbivores.
null	null	null	null	null	null	null	Question: Who wrote the R&B/hip hop song "Upgrade U"? (A) Rihanna (B) Beyoncé Knowles (C) Alicia Keys (D) Cardi B Answer: (B) Beyoncé Knowles
Mercury_178955	Genes code for specifically structured	{ "label": [ "A", "B", "C", "D" ], "text": [ "acids.", "lipids.", "sugars.", "proteins." ] }	D	Question: Genes code for specifically structured (A) acids. (B) lipids. (C) sugars. (D) proteins.	Answer: (D) proteins.	Answer: (C) sugars.	Question: Genes code for specifically structured (A) acids. (B) lipids. (C) sugars. (D) proteins. Answer: (D) proteins.
null	null	null	null	null	null	null	Water and some kinds of energy sources (solar, wind) can be used indef-initely for growing food, animal husbandry, manufacturing commodities, and so on.
null	null	null	null	null	null	null	Most water flows through river basins.
null	null	null	null	null	null	null	They have lived since the late Silurian period.
MDSA_2007_4_31	A female dog is having puppies. She has black fur, brown eyes, and a curly tail. She can sit, bark, and roll over on command. Which set of traits can the female dog's puppies inherit?	{ "label": [ "A", "B", "C", "D" ], "text": [ "brown eyes, black fur", "fur, roll over on command", "brown eyes, sit on command", "bark on command, curly tail" ] }	A	Question: A female dog is having puppies. She has black fur, brown eyes, and a curly tail. She can sit, bark, and roll over on command. Which set of traits can the female dog's puppies inherit? (A) brown eyes, black fur (B) fur, roll over on command (C) brown eyes, sit on command (D) bark on command, curly tail	Answer: (A) brown eyes, black fur	Answer: (C) brown eyes, sit on command	Question: A female dog is having puppies. She has black fur, brown eyes, and a curly tail. She can sit, bark, and roll over on command. Which set of traits can the female dog's puppies inherit? (A) brown eyes, black fur (B) fur, roll over on command (C) brown eyes, sit on command (D) bark on command, curly tail Answer: (A) brown eyes, black fur
Mercury_7240783	Which of the following allows a cell to become specialized?	{ "label": [ "A", "B", "C", "D" ], "text": [ "location of the cell in the body", "function of the cell in the body", "different patterns of gene expression", "different combinations of genes in the nucleus" ] }	C	Question: Which of the following allows a cell to become specialized? (A) location of the cell in the body (B) function of the cell in the body (C) different patterns of gene expression (D) different combinations of genes in the nucleus	Answer: (C) different patterns of gene expression	Answer: (A) location of the cell in the body	Question: Which of the following allows a cell to become specialized? (A) location of the cell in the body (B) function of the cell in the body (C) different patterns of gene expression (D) different combinations of genes in the nucleus Answer: (C) different patterns of gene expression
null	null	null	null	null	null	null	this food web obtains energy from both
Mercury_7213605	Which example describes a learned behavior in a dog?	{ "label": [ "A", "B", "C", "D" ], "text": [ "smelling the air for odors", "barking when disturbed", "sitting on command", "digging in soil" ] }	C	Question: Which example describes a learned behavior in a dog? (A) smelling the air for odors (B) barking when disturbed (C) sitting on command (D) digging in soil	Answer: (C) sitting on command	Answer: (B) barking when disturbed	Question: Which example describes a learned behavior in a dog? (A) smelling the air for odors (B) barking when disturbed (C) sitting on command (D) digging in soil Answer: (C) sitting on command
null	null	null	null	null	null	null	Today, the ceratosaurs are defined as early, horned theropods related to (but not ancestral to) later, more evolved theropods like tyrannosaurs.
null	null	null	null	null	null	null	Depending on species, females lay from one to thirty tough, yolky eggs.
null	null	null	null	null	null	null	Some types use chlorophyll photosynthesis.
Mercury_7018235	The most common way humans contribute to the extinction of organisms is by	{ "label": [ "A", "B", "C", "D" ], "text": [ "rotation of crops.", "use of fertilizers.", "destruction of habitat.", "introduction of competing species." ] }	C	Question: The most common way humans contribute to the extinction of organisms is by (A) rotation of crops. (B) use of fertilizers. (C) destruction of habitat. (D) introduction of competing species.	Answer: (C) destruction of habitat.	Answer: (A) rotation of crops.	Question: The most common way humans contribute to the extinction of organisms is by (A) rotation of crops. (B) use of fertilizers. (C) destruction of habitat. (D) introduction of competing species. Answer: (C) destruction of habitat.
null	null	null	null	null	null	null	Floral parts of the sporophyte protect the reduced female gametophyte from drying out and from UV radiation.
null	null	null	null	null	null	null	Cyanobacteria are found almost everywhere; in oceans, lakes and rivers as well as on land.
Mercury_7081113	Which step will most likely ensure that the results of an investigation are valid?	{ "label": [ "A", "B", "C", "D" ], "text": [ "using a computer to graph results", "verifying that results match the original hypothesis", "comparing the results with those of other scientists", "eliminating any results that appear to be abnormal" ] }	C	Question: Which step will most likely ensure that the results of an investigation are valid? (A) using a computer to graph results (B) verifying that results match the original hypothesis (C) comparing the results with those of other scientists (D) eliminating any results that appear to be abnormal	Answer: (C) comparing the results with those of other scientists	Answer: (A) using a computer to graph results	Question: Which step will most likely ensure that the results of an investigation are valid? (A) using a computer to graph results (B) verifying that results match the original hypothesis (C) comparing the results with those of other scientists (D) eliminating any results that appear to be abnormal Answer: (C) comparing the results with those of other scientists
Mercury_7207235	Which of these actions will change a sedimentary rock, such as limestone, into a metamorphic rock, such as marble?	{ "label": [ "A", "B", "C", "D" ], "text": [ "pressure from a glacier", "heat from magma", "erosion from flowing water", "radiation from the Sun" ] }	B	Question: Which of these actions will change a sedimentary rock, such as limestone, into a metamorphic rock, such as marble? (A) pressure from a glacier (B) heat from magma (C) erosion from flowing water (D) radiation from the Sun	Answer: (B) heat from magma	Answer: (C) erosion from flowing water	Question: Which of these actions will change a sedimentary rock, such as limestone, into a metamorphic rock, such as marble? (A) pressure from a glacier (B) heat from magma (C) erosion from flowing water (D) radiation from the Sun Answer: (B) heat from magma
null	null	null	null	null	null	null	organism that needs to feed on other organisms to obtain energy
NYSEDREGENTS_2011_4_5	It rained on a hot summer afternoon and a puddle formed. After several hours, the puddle was gone. Which two processes made the puddle form and then disappear?	{ "label": [ "A", "B", "C", "D" ], "text": [ "precipitation followed by evaporation", "deposition followed by evaporation", "precipitation followed by runoff", "deposition followed by runoff" ] }	A	Question: It rained on a hot summer afternoon and a puddle formed. After several hours, the puddle was gone. Which two processes made the puddle form and then disappear? (A) precipitation followed by evaporation (B) deposition followed by evaporation (C) precipitation followed by runoff (D) deposition followed by runoff	Answer: (A) precipitation followed by evaporation	Answer: (D) deposition followed by runoff	Question: It rained on a hot summer afternoon and a puddle formed. After several hours, the puddle was gone. Which two processes made the puddle form and then disappear? (A) precipitation followed by evaporation (B) deposition followed by evaporation (C) precipitation followed by runoff (D) deposition followed by runoff Answer: (A) precipitation followed by evaporation
null	null	null	null	null	null	null	The use of different marker types in the present study could introduce statistical and interpretational problems, particularly related to downward bias of microsatellite divergence between the North and Baltic Seas caused by for example, size homoplasy ( Estoup et al., 2002 ) and departure from migration-drift equilibrium (see for example Pogson et al., 2001 ).
null	null	null	null	null	null	null	Fossil nematodes have been found in rocks from as early as the Carboniferous .
null	null	null	null	null	null	null	They afford a large surface on which the blood- vessels are washed by the water.
null	null	null	null	null	null	null	Some behaviour provides benefits.
null	null	null	null	null	null	null	Most parrots share many features.
Mercury_7187233	Plants in a forest need to obtain nutrients from the soil to survive. How do most of the nutrients get back in the soil once the forest plants have used them for growth?	{ "label": [ "A", "B", "C", "D" ], "text": [ "Organic matter recycles from dead organisms.", "Commercial fertilizers are applied by humans.", "Solar radiation reaches the ground surface.", "Rainwater drips off of living organisms." ] }	A	Question: Plants in a forest need to obtain nutrients from the soil to survive. How do most of the nutrients get back in the soil once the forest plants have used them for growth? (A) Organic matter recycles from dead organisms. (B) Commercial fertilizers are applied by humans. (C) Solar radiation reaches the ground surface. (D) Rainwater drips off of living organisms.	Answer: (A) Organic matter recycles from dead organisms.	Answer: (B) Commercial fertilizers are applied by humans.	Question: Plants in a forest need to obtain nutrients from the soil to survive. How do most of the nutrients get back in the soil once the forest plants have used them for growth? (A) Organic matter recycles from dead organisms. (B) Commercial fertilizers are applied by humans. (C) Solar radiation reaches the ground surface. (D) Rainwater drips off of living organisms. Answer: (A) Organic matter recycles from dead organisms.
Mercury_SC_409148	Plants transform energy when they make their own food. Which type of energy is used by plants for making food?	{ "label": [ "A", "B", "C", "D" ], "text": [ "electrical", "heat", "light", "mechanical" ] }	C	Question: Plants transform energy when they make their own food. Which type of energy is used by plants for making food? (A) electrical (B) heat (C) light (D) mechanical	Answer: (C) light	Answer: (B) heat	Question: Plants transform energy when they make their own food. Which type of energy is used by plants for making food? (A) electrical (B) heat (C) light (D) mechanical Answer: (C) light
null	null	null	null	null	null	null	This situation may be further exacerbated by global climate change .
null	null	null	null	null	null	null	Range also refers to the geographic distribution of a particular species.
Mercury_7069440	If two objects are two meters apart, which of these changes will increase the gravitational force between the two objects?	{ "label": [ "A", "B", "C", "D" ], "text": [ "decreasing the mass of one object", "decreasing the mass of both objects", "moving the objects to one meter apart", "moving the objects to three meters apart" ] }	C	Question: If two objects are two meters apart, which of these changes will increase the gravitational force between the two objects? (A) decreasing the mass of one object (B) decreasing the mass of both objects (C) moving the objects to one meter apart (D) moving the objects to three meters apart	Answer: (C) moving the objects to one meter apart	Answer: (D) moving the objects to three meters apart	Question: If two objects are two meters apart, which of these changes will increase the gravitational force between the two objects? (A) decreasing the mass of one object (B) decreasing the mass of both objects (C) moving the objects to one meter apart (D) moving the objects to three meters apart Answer: (C) moving the objects to one meter apart
null	null	null	null	null	null	null	Courtship displays are expected to aid in the establishment and defense of a nesting territory, attraction of a suitable mate, and the establishment of a strong pair bond, all which are necessary for successful breeding.
Mercury_7009783	The Heliocentric Theory, as supported by Copernicus, revolutionized scientific theories regarding	{ "label": [ "A", "B", "C", "D" ], "text": [ "the life cycle.", "the water cycle.", "the solar system.", "the immune system." ] }	C	Question: The Heliocentric Theory, as supported by Copernicus, revolutionized scientific theories regarding (A) the life cycle. (B) the water cycle. (C) the solar system. (D) the immune system.	Answer: (C) the solar system.	Answer: (B) the water cycle.	Question: The Heliocentric Theory, as supported by Copernicus, revolutionized scientific theories regarding (A) the life cycle. (B) the water cycle. (C) the solar system. (D) the immune system. Answer: (C) the solar system.
null	null	null	null	null	null	null	long whip-like structure used to move the cell.
Mercury_7188563	A particular organism is able to survive in an environment due to a thick layer of fat beneath its skin. In which situation would the layer of fat most likely be a survival advantage?	{ "label": [ "A", "B", "C", "D" ], "text": [ "swimming in arctic waters", "eating large amounts of fish", "being preyed upon by other animals", "living in an environment with high temperatures" ] }	A	Question: A particular organism is able to survive in an environment due to a thick layer of fat beneath its skin. In which situation would the layer of fat most likely be a survival advantage? (A) swimming in arctic waters (B) eating large amounts of fish (C) being preyed upon by other animals (D) living in an environment with high temperatures	Answer: (A) swimming in arctic waters	Answer: (B) eating large amounts of fish	Question: A particular organism is able to survive in an environment due to a thick layer of fat beneath its skin. In which situation would the layer of fat most likely be a survival advantage? (A) swimming in arctic waters (B) eating large amounts of fish (C) being preyed upon by other animals (D) living in an environment with high temperatures Answer: (A) swimming in arctic waters
null	null	null	null	null	null	null	Most proteins have effects.
Mercury_SC_413533	Which example shows a new substance being formed?	{ "label": [ "A", "B", "C", "D" ], "text": [ "a candle burning", "a shoelace being tied", "a pipe being cut in half", "a block of ice melting" ] }	A	Question: Which example shows a new substance being formed? (A) a candle burning (B) a shoelace being tied (C) a pipe being cut in half (D) a block of ice melting	Answer: (A) a candle burning	Answer: (D) a block of ice melting	Question: Which example shows a new substance being formed? (A) a candle burning (B) a shoelace being tied (C) a pipe being cut in half (D) a block of ice melting Answer: (A) a candle burning
Mercury_7094430	Human muscle cells need nutrients and oxygen during exercise. The human body is able to meet the needs of the muscle cells during exercise by increasing	{ "label": [ "A", "B", "C", "D" ], "text": [ "digestion.", "excretion.", "secretion.", "circulation." ] }	D	Question: Human muscle cells need nutrients and oxygen during exercise. The human body is able to meet the needs of the muscle cells during exercise by increasing (A) digestion. (B) excretion. (C) secretion. (D) circulation.	Answer: (D) circulation.	Answer: (A) digestion.	Question: Human muscle cells need nutrients and oxygen during exercise. The human body is able to meet the needs of the muscle cells during exercise by increasing (A) digestion. (B) excretion. (C) secretion. (D) circulation. Answer: (D) circulation.
null	null	null	null	null	null	null	Twenty-one species inhabit the United States.
OHAT_2011_8_2	Which kind of rock is produced by deposition and cementation?	{ "label": [ "A", "B", "C", "D" ], "text": [ "marble, a metamorphic rock", "sandstone, a sedimentary rock", "granite, an intrusive igneous rock", "pumice, an extrusive igneous rock" ] }	B	Question: Which kind of rock is produced by deposition and cementation? (A) marble, a metamorphic rock (B) sandstone, a sedimentary rock (C) granite, an intrusive igneous rock (D) pumice, an extrusive igneous rock	Answer: (B) sandstone, a sedimentary rock	Answer: (A) marble, a metamorphic rock	Question: Which kind of rock is produced by deposition and cementation? (A) marble, a metamorphic rock (B) sandstone, a sedimentary rock (C) granite, an intrusive igneous rock (D) pumice, an extrusive igneous rock Answer: (B) sandstone, a sedimentary rock
null	null	null	null	null	null	null	Question: What is undesirable in a running water system such as Moutere Stream? (A) fully digested vegetative matter (B) partially digested vegetative matter (C) animal waste (D) toxic chemicals Answer: (B) partially digested vegetative matter
Mercury_7044538	Which instrument should a student use to best examine bacteria?	{ "label": [ "A", "B", "C", "D" ], "text": [ "telescope", "hand lens", "microscope", "computer probes" ] }	C	Question: Which instrument should a student use to best examine bacteria? (A) telescope (B) hand lens (C) microscope (D) computer probes	Answer: (C) microscope	Answer: (D) computer probes	Question: Which instrument should a student use to best examine bacteria? (A) telescope (B) hand lens (C) microscope (D) computer probes Answer: (C) microscope
NYSEDREGENTS_2005_4_24	When a person speaks into a telephone, sound energy is changed mostly into which form of energy?	{ "label": [ "A", "B", "C", "D" ], "text": [ "heat", "light", "electrical", "chemical" ] }	C	Question: When a person speaks into a telephone, sound energy is changed mostly into which form of energy? (A) heat (B) light (C) electrical (D) chemical	Answer: (C) electrical	Answer: (B) light	Question: When a person speaks into a telephone, sound energy is changed mostly into which form of energy? (A) heat (B) light (C) electrical (D) chemical Answer: (C) electrical
Mercury_7218715	Which phase change in the atmosphere forms clouds?	{ "label": [ "A", "B", "C", "D" ], "text": [ "evaporation", "freezing", "condensation", "melting" ] }	C	Question: Which phase change in the atmosphere forms clouds? (A) evaporation (B) freezing (C) condensation (D) melting	Answer: (C) condensation	Answer: (B) freezing	Question: Which phase change in the atmosphere forms clouds? (A) evaporation (B) freezing (C) condensation (D) melting Answer: (C) condensation
NCEOGA_2013_5_58	Why do dogs have most of the characteristics of their parents?	{ "label": [ "A", "B", "C", "D" ], "text": [ "They inherit them from their parents.", "They live in the same habitats as their parents.", "They learn them by observing their parents.", "They eat the same foods as their parents." ] }	A	Question: Why do dogs have most of the characteristics of their parents? (A) They inherit them from their parents. (B) They live in the same habitats as their parents. (C) They learn them by observing their parents. (D) They eat the same foods as their parents.	Answer: (A) They inherit them from their parents.	Answer: (D) They eat the same foods as their parents.	Question: Why do dogs have most of the characteristics of their parents? (A) They inherit them from their parents. (B) They live in the same habitats as their parents. (C) They learn them by observing their parents. (D) They eat the same foods as their parents. Answer: (A) They inherit them from their parents.
null	null	null	null	null	null	null	Sex can break up good genetic combinations
null	null	null	null	null	null	null	For such determinations, many different types of genetic material are examined and compared.
null	null	null	null	null	null	null	Some fruit grows in areas.
null	null	null	null	null	null	null	4) Are made of cells
MCAS_2016_8_5	An engineer constructs a prototype from wood. Which of the following is the best tool for the engineer to use to make the prototype's surface smooth?	{ "label": [ "A", "B", "C", "D" ], "text": [ "band saw", "chisel", "drill", "sandpaper" ] }	D	Question: An engineer constructs a prototype from wood. Which of the following is the best tool for the engineer to use to make the prototype's surface smooth? (A) band saw (B) chisel (C) drill (D) sandpaper	Answer: (D) sandpaper	Answer: (A) band saw	Question: An engineer constructs a prototype from wood. Which of the following is the best tool for the engineer to use to make the prototype's surface smooth? (A) band saw (B) chisel (C) drill (D) sandpaper Answer: (D) sandpaper
null	null	null	null	null	null	null	Some vigorous growth takes places.
null	null	null	null	null	null	null	Each one of the central cells gives rise to a single sperm.
null	null	null	null	null	null	null	Let’s start with insects.
Mercury_7132423	The human body is made up of organ systems that work together as one unit. Which systems work together to prepare and distribute food for cells?	{ "label": [ "A", "B", "C", "D" ], "text": [ "digestive and circulatory", "digestive and endocrine", "nervous and respiratory", "nervous and excretory" ] }	A	Question: The human body is made up of organ systems that work together as one unit. Which systems work together to prepare and distribute food for cells? (A) digestive and circulatory (B) digestive and endocrine (C) nervous and respiratory (D) nervous and excretory	Answer: (A) digestive and circulatory	Answer: (D) nervous and excretory	Question: The human body is made up of organ systems that work together as one unit. Which systems work together to prepare and distribute food for cells? (A) digestive and circulatory (B) digestive and endocrine (C) nervous and respiratory (D) nervous and excretory Answer: (A) digestive and circulatory
null	null	null	null	null	null	null	Energy enters as sunlight and exits as heat, while chemicals cycle in the ecosystem.
Mercury_7133840	Pedro shook a can of soda. When the soda was opened, foam and soda burst from the can. Which statement best explains what happened?	{ "label": [ "A", "B", "C", "D" ], "text": [ "A new substance was formed.", "The gas pressure was released from the can.", "The sugar in the soda turned into a gas.", "The can absorbed heat from the air." ] }	B	Question: Pedro shook a can of soda. When the soda was opened, foam and soda burst from the can. Which statement best explains what happened? (A) A new substance was formed. (B) The gas pressure was released from the can. (C) The sugar in the soda turned into a gas. (D) The can absorbed heat from the air.	Answer: (B) The gas pressure was released from the can.	Answer: (D) The can absorbed heat from the air.	Question: Pedro shook a can of soda. When the soda was opened, foam and soda burst from the can. Which statement best explains what happened? (A) A new substance was formed. (B) The gas pressure was released from the can. (C) The sugar in the soda turned into a gas. (D) The can absorbed heat from the air. Answer: (B) The gas pressure was released from the can.
AIMS_2009_4_21	While Anna was testing a circuit, she dropped a light bulb. What is the safest thing Anna can do?	{ "label": [ "A", "B", "C", "D" ], "text": [ "get a new bulb to finish the test", "push the broken glass under a table", "tell her teacher that she broke the bulb", "ask her partner to help pick up the broken glass" ] }	C	Question: While Anna was testing a circuit, she dropped a light bulb. What is the safest thing Anna can do? (A) get a new bulb to finish the test (B) push the broken glass under a table (C) tell her teacher that she broke the bulb (D) ask her partner to help pick up the broken glass	Answer: (C) tell her teacher that she broke the bulb	Answer: (A) get a new bulb to finish the test	Question: While Anna was testing a circuit, she dropped a light bulb. What is the safest thing Anna can do? (A) get a new bulb to finish the test (B) push the broken glass under a table (C) tell her teacher that she broke the bulb (D) ask her partner to help pick up the broken glass Answer: (C) tell her teacher that she broke the bulb
Mercury_7081445	An earthquake in the Earth's crust under the ocean releases sound waves. Which statement accurately describes how the sound waves spread?	{ "label": [ "A", "B", "C", "D" ], "text": [ "They spread in all directions away from their source.", "They remain trapped near the source by water pressure.", "They travel mostly horizontally along the ocean floor.", "They travel mostly upward toward the surface of the water." ] }	A	Question: An earthquake in the Earth's crust under the ocean releases sound waves. Which statement accurately describes how the sound waves spread? (A) They spread in all directions away from their source. (B) They remain trapped near the source by water pressure. (C) They travel mostly horizontally along the ocean floor. (D) They travel mostly upward toward the surface of the water.	Answer: (A) They spread in all directions away from their source.	Answer: (B) They remain trapped near the source by water pressure.	Question: An earthquake in the Earth's crust under the ocean releases sound waves. Which statement accurately describes how the sound waves spread? (A) They spread in all directions away from their source. (B) They remain trapped near the source by water pressure. (C) They travel mostly horizontally along the ocean floor. (D) They travel mostly upward toward the surface of the water. Answer: (A) They spread in all directions away from their source.
Mercury_SC_408506	Which part of a strawberry plant absorbs most of the water needed by the plant?	{ "label": [ "A", "B", "C", "D" ], "text": [ "flowers", "fruits", "leaves", "roots" ] }	D	Question: Which part of a strawberry plant absorbs most of the water needed by the plant? (A) flowers (B) fruits (C) leaves (D) roots	Answer: (D) roots	Answer: (C) leaves	Question: Which part of a strawberry plant absorbs most of the water needed by the plant? (A) flowers (B) fruits (C) leaves (D) roots Answer: (D) roots
null	null	null	null	null	null	null	Question: What do areas modified by agricultural practices tend to provide deer with? (A) Water (B) Shelter (C) Forage (D) Nesting materials Answer: (C) Forage
null	null	null	null	null	null	null	Individual females usually contain 2,000 to 7,000 eggs per pound of body weight, with an average of about 4,000 eggs per female.
Mercury_7108938	Large populations of tortoises inhabited the Galapagos Islands before humans. When humans settled on the islands and introduced goats, the number of tortoise declined. What is most likely the explanation for the decrease in the tortoise population?	{ "label": [ "A", "B", "C", "D" ], "text": [ "Goats consume tortoise hatchlings.", "Goats pollute water sources.", "Goats compete with tortoises for vegetation.", "Goats contribute to soil erosion." ] }	C	Question: Large populations of tortoises inhabited the Galapagos Islands before humans. When humans settled on the islands and introduced goats, the number of tortoise declined. What is most likely the explanation for the decrease in the tortoise population? (A) Goats consume tortoise hatchlings. (B) Goats pollute water sources. (C) Goats compete with tortoises for vegetation. (D) Goats contribute to soil erosion.	Answer: (C) Goats compete with tortoises for vegetation.	Answer: (B) Goats pollute water sources.	Question: Large populations of tortoises inhabited the Galapagos Islands before humans. When humans settled on the islands and introduced goats, the number of tortoise declined. What is most likely the explanation for the decrease in the tortoise population? (A) Goats consume tortoise hatchlings. (B) Goats pollute water sources. (C) Goats compete with tortoises for vegetation. (D) Goats contribute to soil erosion. Answer: (C) Goats compete with tortoises for vegetation.
ACTAAP_2009_7_2	Sodium chloride, commonly called "table salt," is made up of sodium and chlorine that have been combined chemically. Which term best describes sodium chloride?	{ "label": [ "A", "B", "C", "D" ], "text": [ "Acid", "Atom", "Element", "Compound" ] }	D	Question: Sodium chloride, commonly called "table salt," is made up of sodium and chlorine that have been combined chemically. Which term best describes sodium chloride? (A) Acid (B) Atom (C) Element (D) Compound	Answer: (D) Compound	Answer: (B) Atom	Question: Sodium chloride, commonly called "table salt," is made up of sodium and chlorine that have been combined chemically. Which term best describes sodium chloride? (A) Acid (B) Atom (C) Element (D) Compound Answer: (D) Compound
null	null	null	null	null	null	null	Sometimes you can turn a liquid into a gas.
MCAS_2005_9_13	A 10 g sample of aluminum and a 10 g sample of iron were each heated by 100 joules of energy. The temperature of the aluminum sample rose 11°C, while the temperature of the iron sample increased 23°C. Which statement best accounts for these results?	{ "label": [ "A", "B", "C", "D" ], "text": [ "Iron is twice as dense as aluminum.", "Atoms of aluminum are smaller than atoms of iron.", "Using equal masses results in similar heat capacities.", "The specific heat of iron is less than that of aluminum." ] }	D	Question: A 10 g sample of aluminum and a 10 g sample of iron were each heated by 100 joules of energy. The temperature of the aluminum sample rose 11°C, while the temperature of the iron sample increased 23°C. Which statement best accounts for these results? (A) Iron is twice as dense as aluminum. (B) Atoms of aluminum are smaller than atoms of iron. (C) Using equal masses results in similar heat capacities. (D) The specific heat of iron is less than that of aluminum.	Answer: (D) The specific heat of iron is less than that of aluminum.	Answer: (B) Atoms of aluminum are smaller than atoms of iron.	Question: A 10 g sample of aluminum and a 10 g sample of iron were each heated by 100 joules of energy. The temperature of the aluminum sample rose 11°C, while the temperature of the iron sample increased 23°C. Which statement best accounts for these results? (A) Iron is twice as dense as aluminum. (B) Atoms of aluminum are smaller than atoms of iron. (C) Using equal masses results in similar heat capacities. (D) The specific heat of iron is less than that of aluminum. Answer: (D) The specific heat of iron is less than that of aluminum.
null	null	null	null	null	null	null	They consume water as a reactant.
Mercury_186270	What type of galaxy is the Milky Way?	{ "label": [ "A", "B", "C", "D" ], "text": [ "spiral", "elliptical", "irregular", "oval" ] }	A	Question: What type of galaxy is the Milky Way? (A) spiral (B) elliptical (C) irregular (D) oval	Answer: (A) spiral	Answer: (B) elliptical	Question: What type of galaxy is the Milky Way? (A) spiral (B) elliptical (C) irregular (D) oval Answer: (A) spiral
NYSEDREGENTS_2007_8_36	Water at 20°C in an uncovered pan is evaporating very slowly. What could be done to the water to make it evaporate more quickly?	{ "label": [ "1", "2", "3", "4" ], "text": [ "Cover it.", "Heat it.", "Place it in the dark.", "Put salt in it." ] }	2	Question: Water at 20°C in an uncovered pan is evaporating very slowly. What could be done to the water to make it evaporate more quickly? (1) Cover it. (2) Heat it. (3) Place it in the dark. (4) Put salt in it.	Answer: (2) Heat it.	Answer: (1) Cover it.	Question: Water at 20°C in an uncovered pan is evaporating very slowly. What could be done to the water to make it evaporate more quickly? (1) Cover it. (2) Heat it. (3) Place it in the dark. (4) Put salt in it. Answer: (2) Heat it.
null	null	null	null	null	null	null	Historic changes in species' distributions and abundance illustrate that culling programmes can be very effective at reducing predator density, although such substantive impacts are generally considered undesirable for native predators.
null	null	null	null	null	null	null	Some gardeners find diseases.
null	null	null	null	null	null	null	The species involved in these events were identified as potential predators.
Mercury_LBS10959	A student is measuring the distance a car travels down a ramp using yards. Which measurement is most similar in length when using the metric system of measurement?	{ "label": [ "A", "B", "C", "D" ], "text": [ "centimeter", "kilometer", "millimeter", "meter" ] }	D	Question: A student is measuring the distance a car travels down a ramp using yards. Which measurement is most similar in length when using the metric system of measurement? (A) centimeter (B) kilometer (C) millimeter (D) meter	Answer: (D) meter	Answer: (C) millimeter	Question: A student is measuring the distance a car travels down a ramp using yards. Which measurement is most similar in length when using the metric system of measurement? (A) centimeter (B) kilometer (C) millimeter (D) meter Answer: (D) meter
null	null	null	null	null	null	null	A body in motion has energy.
null	null	null	null	null	null	null	Question: In mammalian arboreal folivores, what behavior has been convergently evolved a strikingly high number of times? (A) burrowing (B) swimming (C) gliding (D) flying Answer: (C) gliding
null	null	null	null	null	null	null	Some viral diseases result in death.

Mercury_7181598

The Sun is a medium-sized star and is expected to continue to perform nuclear fusion for five billion years. What is most likely to be the final stage of the Sun?

{ "label": [ "A", "B", "C", "D" ], "text": [ "supernova", "supergiant", "neutron star", "white dwarf" ] }

D

Question: The Sun is a medium-sized star and is expected to continue to perform nuclear fusion for five billion years. What is most likely to be the final stage of the Sun? (A) supernova (B) supergiant (C) neutron star (D) white dwarf

Answer: (D) white dwarf

Answer: (A) supernova

Question: The Sun is a medium-sized star and is expected to continue to perform nuclear fusion for five billion years. What is most likely to be the final stage of the Sun? (A) supernova (B) supergiant (C) neutron star (D) white dwarf Answer: (D) white dwarf

OHAT_2010_5_37

A student sets a block at the top of a wooden ramp. The student pushes the block. As the block slides down the ramp, it slows down and then comes to a stop. What force causes the block to slow down?

{ "label": [ "A", "B", "C", "D" ], "text": [ "the force of gravity", "the force of friction", "the force of magnetism", "the force of the student's push" ] }

B

Question: A student sets a block at the top of a wooden ramp. The student pushes the block. As the block slides down the ramp, it slows down and then comes to a stop. What force causes the block to slow down? (A) the force of gravity (B) the force of friction (C) the force of magnetism (D) the force of the student's push

Answer: (B) the force of friction

Answer: (A) the force of gravity

Question: A student sets a block at the top of a wooden ramp. The student pushes the block. As the block slides down the ramp, it slows down and then comes to a stop. What force causes the block to slow down? (A) the force of gravity (B) the force of friction (C) the force of magnetism (D) the force of the student's push Answer: (B) the force of friction

Mercury_177083

A girl with long hair is going to be participating in an experiment that uses an alcohol burner for an energy source. What is the best thing for her to do to prepare for this experiment?

{ "label": [ "A", "B", "C", "D" ], "text": [ "leave her large jacket in her locker for the day", "use goggles during the experiment", "tie her hair back away from her face", "wear a lab apron during the experiment" ] }

C

Question: A girl with long hair is going to be participating in an experiment that uses an alcohol burner for an energy source. What is the best thing for her to do to prepare for this experiment? (A) leave her large jacket in her locker for the day (B) use goggles during the experiment (C) tie her hair back away from her face (D) wear a lab apron during the experiment

Answer: (C) tie her hair back away from her face

Answer: (A) leave her large jacket in her locker for the day

Question: A girl with long hair is going to be participating in an experiment that uses an alcohol burner for an energy source. What is the best thing for her to do to prepare for this experiment? (A) leave her large jacket in her locker for the day (B) use goggles during the experiment (C) tie her hair back away from her face (D) wear a lab apron during the experiment Answer: (C) tie her hair back away from her face

null

Consumption of fruits rich in flavonoid and vitamin A helps to protect from lung cancer and oral cancer.

null

As noted at the start of this review, marine ecosystems consist of networks of interacting organisms.

null

A particular biome encompasses all of the ecosystems that have similar climate and organisms.

null

Most diets emphasize vegetables.

null

C) Urine has nitrogenous waste such as urea and uric acid.

null

As more water is reabsorbed by the nephron tubules, the volume of blood increases and, as more water is excreted in urine, the volume of blood lowers.

CSZ_2008_5_CSZ10104

Where does oxygen-rich blood go after leaving the lungs?

{ "label": [ "A", "B", "C", "D" ], "text": [ "the brain.", "the heart.", "the kidney.", "the stomach." ] }

B

Question: Where does oxygen-rich blood go after leaving the lungs? (A) the brain. (B) the heart. (C) the kidney. (D) the stomach.

Answer: (B) the heart.

Answer: (C) the kidney.

Question: Where does oxygen-rich blood go after leaving the lungs? (A) the brain. (B) the heart. (C) the kidney. (D) the stomach. Answer: (B) the heart.

Mercury_410744

Some events on Earth happen instantly while others take thousands of years to occur. Which process takes the longest time to complete?

{ "label": [ "A", "B", "C", "D" ], "text": [ "rivers rising due to storms and floods", "evaporation of water from the leaves of a plant", "weathering of a rock to form small rocks and sand", "movement of small pieces of rock by flowing water" ] }

C

Question: Some events on Earth happen instantly while others take thousands of years to occur. Which process takes the longest time to complete? (A) rivers rising due to storms and floods (B) evaporation of water from the leaves of a plant (C) weathering of a rock to form small rocks and sand (D) movement of small pieces of rock by flowing water

Answer: (C) weathering of a rock to form small rocks and sand

Answer: (B) evaporation of water from the leaves of a plant

Question: Some events on Earth happen instantly while others take thousands of years to occur. Which process takes the longest time to complete? (A) rivers rising due to storms and floods (B) evaporation of water from the leaves of a plant (C) weathering of a rock to form small rocks and sand (D) movement of small pieces of rock by flowing water Answer: (C) weathering of a rock to form small rocks and sand

null

Cytoplasm... starts as 2 pyruvates--> turns to ATP

NYSEDREGENTS_2004_8_5

If a species is no longer able to reproduce, it will

{ "label": [ "1", "2", "3", "4" ], "text": [ "adapt to its environment", "become immune to disease", "become extinct", "increase its population" ] }

3

Question: If a species is no longer able to reproduce, it will (1) adapt to its environment (2) become immune to disease (3) become extinct (4) increase its population

Answer: (3) become extinct

Answer: (1) adapt to its environment

Question: If a species is no longer able to reproduce, it will (1) adapt to its environment (2) become immune to disease (3) become extinct (4) increase its population Answer: (3) become extinct

null

The sporophyte generation becomes progressively more dominant in plants

VASoL_2009_5_21

Which of these is most likely harmful to an ecosystem?

{ "label": [ "A", "B", "C", "D" ], "text": [ "Building new homes in a wetland", "Taking away airplanes from an airport", "Planting trees in an orchard", "Adding floors to an office building" ] }

A

Question: Which of these is most likely harmful to an ecosystem? (A) Building new homes in a wetland (B) Taking away airplanes from an airport (C) Planting trees in an orchard (D) Adding floors to an office building

Answer: (A) Building new homes in a wetland

Answer: (C) Planting trees in an orchard

Question: Which of these is most likely harmful to an ecosystem? (A) Building new homes in a wetland (B) Taking away airplanes from an airport (C) Planting trees in an orchard (D) Adding floors to an office building Answer: (A) Building new homes in a wetland

Mercury_SC_400861

Which object best reflects light?

{ "label": [ "A", "B", "C", "D" ], "text": [ "gray door", "white floor", "black sweater", "brown carpet" ] }

B

Question: Which object best reflects light? (A) gray door (B) white floor (C) black sweater (D) brown carpet

Answer: (B) white floor

Answer: (A) gray door

Question: Which object best reflects light? (A) gray door (B) white floor (C) black sweater (D) brown carpet Answer: (B) white floor

null

Most carnivores use sound.

null

Some forces have effects.

null

For S. pombe, however, the asexual reproduction is done via fission, from which two daughter cells of equal size are produced.

Mercury_7041493

All these statements concerning galaxies are accurate except

{ "label": [ "A", "B", "C", "D" ], "text": [ "They contain millions of stars.", "Most can be seen without a telescope.", "They are millions of light-years apart.", "Space contains several billion galaxies." ] }

B

Question: All these statements concerning galaxies are accurate except (A) They contain millions of stars. (B) Most can be seen without a telescope. (C) They are millions of light-years apart. (D) Space contains several billion galaxies.

Answer: (B) Most can be seen without a telescope.

Answer: (D) Space contains several billion galaxies.

Question: All these statements concerning galaxies are accurate except (A) They contain millions of stars. (B) Most can be seen without a telescope. (C) They are millions of light-years apart. (D) Space contains several billion galaxies. Answer: (B) Most can be seen without a telescope.

null

The spectral distribution of the incident light will be quite markedly different in all three cases, with the result that for any given phytoplankton population, with a given absorption spectrum, a will have a different value for each light source because the effective specific absorption coef- ficient, _ af*, for the incident PAR will be different for each light source.

Mercury_SC_416102

Plants need iron to grow. What parts of plants take in iron?

{ "label": [ "A", "B", "C", "D" ], "text": [ "roots", "flowers", "stems", "leaves" ] }

A

Question: Plants need iron to grow. What parts of plants take in iron? (A) roots (B) flowers (C) stems (D) leaves

Answer: (A) roots

Answer: (B) flowers

Question: Plants need iron to grow. What parts of plants take in iron? (A) roots (B) flowers (C) stems (D) leaves Answer: (A) roots

Mercury_SC_401159

A student adds sugar, spices, and salt to a bowl of peanuts and stirs them together. What has the student made?

{ "label": [ "A", "B", "C", "D" ], "text": [ "a compound", "a substance", "a mixture", "a solution" ] }

C

Question: A student adds sugar, spices, and salt to a bowl of peanuts and stirs them together. What has the student made? (A) a compound (B) a substance (C) a mixture (D) a solution

Answer: (C) a mixture

Answer: (A) a compound

Question: A student adds sugar, spices, and salt to a bowl of peanuts and stirs them together. What has the student made? (A) a compound (B) a substance (C) a mixture (D) a solution Answer: (C) a mixture

ACTAAP_2008_5_11

With a microscope, you see that an object has a cell wall, a chloroplast, and a nucleus. What is being observed?

{ "label": [ "A", "B", "C", "D" ], "text": [ "a plant cell", "an animal cell", "a male organism", "a female organism" ] }

A

Question: With a microscope, you see that an object has a cell wall, a chloroplast, and a nucleus. What is being observed? (A) a plant cell (B) an animal cell (C) a male organism (D) a female organism

Answer: (A) a plant cell

Answer: (C) a male organism

Question: With a microscope, you see that an object has a cell wall, a chloroplast, and a nucleus. What is being observed? (A) a plant cell (B) an animal cell (C) a male organism (D) a female organism Answer: (A) a plant cell

null

Some families include other animals.

null

Question: What are the monkeys in the Atlas Mountains known for? (A) Singing beautiful songs (B) Stealing grain (C) Building nests (D) Hunting for prey Answer: (B) Stealing grain

null

<i>The role elephants play in the food chain is the herbivores.

null

Question: Who wrote the R&B/hip hop song "Upgrade U"? (A) Rihanna (B) Beyoncé Knowles (C) Alicia Keys (D) Cardi B Answer: (B) Beyoncé Knowles

Mercury_178955

Genes code for specifically structured

{ "label": [ "A", "B", "C", "D" ], "text": [ "acids.", "lipids.", "sugars.", "proteins." ] }

D

Question: Genes code for specifically structured (A) acids. (B) lipids. (C) sugars. (D) proteins.

Answer: (D) proteins.

Answer: (C) sugars.

Question: Genes code for specifically structured (A) acids. (B) lipids. (C) sugars. (D) proteins. Answer: (D) proteins.

null

Water and some kinds of energy sources (solar, wind) can be used indef-initely for growing food, animal husbandry, manufacturing commodities, and so on.

null

Most water flows through river basins.

null

They have lived since the late Silurian period.

MDSA_2007_4_31

A female dog is having puppies. She has black fur, brown eyes, and a curly tail. She can sit, bark, and roll over on command. Which set of traits can the female dog's puppies inherit?

{ "label": [ "A", "B", "C", "D" ], "text": [ "brown eyes, black fur", "fur, roll over on command", "brown eyes, sit on command", "bark on command, curly tail" ] }

A

Question: A female dog is having puppies. She has black fur, brown eyes, and a curly tail. She can sit, bark, and roll over on command. Which set of traits can the female dog's puppies inherit? (A) brown eyes, black fur (B) fur, roll over on command (C) brown eyes, sit on command (D) bark on command, curly tail

Answer: (A) brown eyes, black fur

Answer: (C) brown eyes, sit on command

Question: A female dog is having puppies. She has black fur, brown eyes, and a curly tail. She can sit, bark, and roll over on command. Which set of traits can the female dog's puppies inherit? (A) brown eyes, black fur (B) fur, roll over on command (C) brown eyes, sit on command (D) bark on command, curly tail Answer: (A) brown eyes, black fur

Mercury_7240783

Which of the following allows a cell to become specialized?

{ "label": [ "A", "B", "C", "D" ], "text": [ "location of the cell in the body", "function of the cell in the body", "different patterns of gene expression", "different combinations of genes in the nucleus" ] }

C

Question: Which of the following allows a cell to become specialized? (A) location of the cell in the body (B) function of the cell in the body (C) different patterns of gene expression (D) different combinations of genes in the nucleus

Answer: (C) different patterns of gene expression

Answer: (A) location of the cell in the body

Question: Which of the following allows a cell to become specialized? (A) location of the cell in the body (B) function of the cell in the body (C) different patterns of gene expression (D) different combinations of genes in the nucleus Answer: (C) different patterns of gene expression

null

this food web obtains energy from both

Mercury_7213605

Which example describes a learned behavior in a dog?

{ "label": [ "A", "B", "C", "D" ], "text": [ "smelling the air for odors", "barking when disturbed", "sitting on command", "digging in soil" ] }

C

Question: Which example describes a learned behavior in a dog? (A) smelling the air for odors (B) barking when disturbed (C) sitting on command (D) digging in soil

Answer: (C) sitting on command

Answer: (B) barking when disturbed

Question: Which example describes a learned behavior in a dog? (A) smelling the air for odors (B) barking when disturbed (C) sitting on command (D) digging in soil Answer: (C) sitting on command

null

Today, the ceratosaurs are defined as early, horned theropods related to (but not ancestral to) later, more evolved theropods like tyrannosaurs.

null

Depending on species, females lay from one to thirty tough, yolky eggs.

null

Some types use chlorophyll photosynthesis.

Mercury_7018235

The most common way humans contribute to the extinction of organisms is by

{ "label": [ "A", "B", "C", "D" ], "text": [ "rotation of crops.", "use of fertilizers.", "destruction of habitat.", "introduction of competing species." ] }

C

Question: The most common way humans contribute to the extinction of organisms is by (A) rotation of crops. (B) use of fertilizers. (C) destruction of habitat. (D) introduction of competing species.

Answer: (C) destruction of habitat.

Answer: (A) rotation of crops.

Question: The most common way humans contribute to the extinction of organisms is by (A) rotation of crops. (B) use of fertilizers. (C) destruction of habitat. (D) introduction of competing species. Answer: (C) destruction of habitat.

null

Floral parts of the sporophyte protect the reduced female gametophyte from drying out and from UV radiation.

null

Cyanobacteria are found almost everywhere; in oceans, lakes and rivers as well as on land.

Mercury_7081113

Which step will most likely ensure that the results of an investigation are valid?

{ "label": [ "A", "B", "C", "D" ], "text": [ "using a computer to graph results", "verifying that results match the original hypothesis", "comparing the results with those of other scientists", "eliminating any results that appear to be abnormal" ] }

C

Question: Which step will most likely ensure that the results of an investigation are valid? (A) using a computer to graph results (B) verifying that results match the original hypothesis (C) comparing the results with those of other scientists (D) eliminating any results that appear to be abnormal

Answer: (C) comparing the results with those of other scientists

Answer: (A) using a computer to graph results

Question: Which step will most likely ensure that the results of an investigation are valid? (A) using a computer to graph results (B) verifying that results match the original hypothesis (C) comparing the results with those of other scientists (D) eliminating any results that appear to be abnormal Answer: (C) comparing the results with those of other scientists

Mercury_7207235

Which of these actions will change a sedimentary rock, such as limestone, into a metamorphic rock, such as marble?

{ "label": [ "A", "B", "C", "D" ], "text": [ "pressure from a glacier", "heat from magma", "erosion from flowing water", "radiation from the Sun" ] }

B

Question: Which of these actions will change a sedimentary rock, such as limestone, into a metamorphic rock, such as marble? (A) pressure from a glacier (B) heat from magma (C) erosion from flowing water (D) radiation from the Sun

Answer: (B) heat from magma

Answer: (C) erosion from flowing water

Question: Which of these actions will change a sedimentary rock, such as limestone, into a metamorphic rock, such as marble? (A) pressure from a glacier (B) heat from magma (C) erosion from flowing water (D) radiation from the Sun Answer: (B) heat from magma

null

organism that needs to feed on other organisms to obtain energy

NYSEDREGENTS_2011_4_5

It rained on a hot summer afternoon and a puddle formed. After several hours, the puddle was gone. Which two processes made the puddle form and then disappear?

{ "label": [ "A", "B", "C", "D" ], "text": [ "precipitation followed by evaporation", "deposition followed by evaporation", "precipitation followed by runoff", "deposition followed by runoff" ] }

A

Question: It rained on a hot summer afternoon and a puddle formed. After several hours, the puddle was gone. Which two processes made the puddle form and then disappear? (A) precipitation followed by evaporation (B) deposition followed by evaporation (C) precipitation followed by runoff (D) deposition followed by runoff

Answer: (A) precipitation followed by evaporation

Answer: (D) deposition followed by runoff

Question: It rained on a hot summer afternoon and a puddle formed. After several hours, the puddle was gone. Which two processes made the puddle form and then disappear? (A) precipitation followed by evaporation (B) deposition followed by evaporation (C) precipitation followed by runoff (D) deposition followed by runoff Answer: (A) precipitation followed by evaporation

null

The use of different marker types in the present study could introduce statistical and interpretational problems, particularly related to downward bias of microsatellite divergence between the North and Baltic Seas caused by for example, size homoplasy ( Estoup et al., 2002 ) and departure from migration-drift equilibrium (see for example Pogson et al., 2001 ).

null

Fossil nematodes have been found in rocks from as early as the Carboniferous .

null

They afford a large surface on which the blood- vessels are washed by the water.

null

Some behaviour provides benefits.

null

Most parrots share many features.

Mercury_7187233

Plants in a forest need to obtain nutrients from the soil to survive. How do most of the nutrients get back in the soil once the forest plants have used them for growth?

{ "label": [ "A", "B", "C", "D" ], "text": [ "Organic matter recycles from dead organisms.", "Commercial fertilizers are applied by humans.", "Solar radiation reaches the ground surface.", "Rainwater drips off of living organisms." ] }

A

Question: Plants in a forest need to obtain nutrients from the soil to survive. How do most of the nutrients get back in the soil once the forest plants have used them for growth? (A) Organic matter recycles from dead organisms. (B) Commercial fertilizers are applied by humans. (C) Solar radiation reaches the ground surface. (D) Rainwater drips off of living organisms.

Answer: (A) Organic matter recycles from dead organisms.

Answer: (B) Commercial fertilizers are applied by humans.

Question: Plants in a forest need to obtain nutrients from the soil to survive. How do most of the nutrients get back in the soil once the forest plants have used them for growth? (A) Organic matter recycles from dead organisms. (B) Commercial fertilizers are applied by humans. (C) Solar radiation reaches the ground surface. (D) Rainwater drips off of living organisms. Answer: (A) Organic matter recycles from dead organisms.

Mercury_SC_409148

Plants transform energy when they make their own food. Which type of energy is used by plants for making food?

{ "label": [ "A", "B", "C", "D" ], "text": [ "electrical", "heat", "light", "mechanical" ] }

C

Question: Plants transform energy when they make their own food. Which type of energy is used by plants for making food? (A) electrical (B) heat (C) light (D) mechanical

Answer: (C) light

Answer: (B) heat

Question: Plants transform energy when they make their own food. Which type of energy is used by plants for making food? (A) electrical (B) heat (C) light (D) mechanical Answer: (C) light

null

This situation may be further exacerbated by global climate change .

null

Range also refers to the geographic distribution of a particular species.

Mercury_7069440

If two objects are two meters apart, which of these changes will increase the gravitational force between the two objects?

{ "label": [ "A", "B", "C", "D" ], "text": [ "decreasing the mass of one object", "decreasing the mass of both objects", "moving the objects to one meter apart", "moving the objects to three meters apart" ] }

C

Question: If two objects are two meters apart, which of these changes will increase the gravitational force between the two objects? (A) decreasing the mass of one object (B) decreasing the mass of both objects (C) moving the objects to one meter apart (D) moving the objects to three meters apart

Answer: (C) moving the objects to one meter apart

Answer: (D) moving the objects to three meters apart

Question: If two objects are two meters apart, which of these changes will increase the gravitational force between the two objects? (A) decreasing the mass of one object (B) decreasing the mass of both objects (C) moving the objects to one meter apart (D) moving the objects to three meters apart Answer: (C) moving the objects to one meter apart

null

Courtship displays are expected to aid in the establishment and defense of a nesting territory, attraction of a suitable mate, and the establishment of a strong pair bond, all which are necessary for successful breeding.

Mercury_7009783

The Heliocentric Theory, as supported by Copernicus, revolutionized scientific theories regarding

{ "label": [ "A", "B", "C", "D" ], "text": [ "the life cycle.", "the water cycle.", "the solar system.", "the immune system." ] }

C

Question: The Heliocentric Theory, as supported by Copernicus, revolutionized scientific theories regarding (A) the life cycle. (B) the water cycle. (C) the solar system. (D) the immune system.

Answer: (C) the solar system.

Answer: (B) the water cycle.

Question: The Heliocentric Theory, as supported by Copernicus, revolutionized scientific theories regarding (A) the life cycle. (B) the water cycle. (C) the solar system. (D) the immune system. Answer: (C) the solar system.

null

long whip-like structure used to move the cell.

Mercury_7188563

A particular organism is able to survive in an environment due to a thick layer of fat beneath its skin. In which situation would the layer of fat most likely be a survival advantage?

{ "label": [ "A", "B", "C", "D" ], "text": [ "swimming in arctic waters", "eating large amounts of fish", "being preyed upon by other animals", "living in an environment with high temperatures" ] }

A

Question: A particular organism is able to survive in an environment due to a thick layer of fat beneath its skin. In which situation would the layer of fat most likely be a survival advantage? (A) swimming in arctic waters (B) eating large amounts of fish (C) being preyed upon by other animals (D) living in an environment with high temperatures

Answer: (A) swimming in arctic waters

Answer: (B) eating large amounts of fish

Question: A particular organism is able to survive in an environment due to a thick layer of fat beneath its skin. In which situation would the layer of fat most likely be a survival advantage? (A) swimming in arctic waters (B) eating large amounts of fish (C) being preyed upon by other animals (D) living in an environment with high temperatures Answer: (A) swimming in arctic waters

null

Most proteins have effects.

Mercury_SC_413533

Which example shows a new substance being formed?

{ "label": [ "A", "B", "C", "D" ], "text": [ "a candle burning", "a shoelace being tied", "a pipe being cut in half", "a block of ice melting" ] }

A

Question: Which example shows a new substance being formed? (A) a candle burning (B) a shoelace being tied (C) a pipe being cut in half (D) a block of ice melting

Answer: (A) a candle burning

Answer: (D) a block of ice melting

Question: Which example shows a new substance being formed? (A) a candle burning (B) a shoelace being tied (C) a pipe being cut in half (D) a block of ice melting Answer: (A) a candle burning

Mercury_7094430

Human muscle cells need nutrients and oxygen during exercise. The human body is able to meet the needs of the muscle cells during exercise by increasing

{ "label": [ "A", "B", "C", "D" ], "text": [ "digestion.", "excretion.", "secretion.", "circulation." ] }

D

Question: Human muscle cells need nutrients and oxygen during exercise. The human body is able to meet the needs of the muscle cells during exercise by increasing (A) digestion. (B) excretion. (C) secretion. (D) circulation.

Answer: (D) circulation.

Answer: (A) digestion.

Question: Human muscle cells need nutrients and oxygen during exercise. The human body is able to meet the needs of the muscle cells during exercise by increasing (A) digestion. (B) excretion. (C) secretion. (D) circulation. Answer: (D) circulation.

null

Twenty-one species inhabit the United States.

OHAT_2011_8_2

Which kind of rock is produced by deposition and cementation?

{ "label": [ "A", "B", "C", "D" ], "text": [ "marble, a metamorphic rock", "sandstone, a sedimentary rock", "granite, an intrusive igneous rock", "pumice, an extrusive igneous rock" ] }

B

Question: Which kind of rock is produced by deposition and cementation? (A) marble, a metamorphic rock (B) sandstone, a sedimentary rock (C) granite, an intrusive igneous rock (D) pumice, an extrusive igneous rock

Answer: (B) sandstone, a sedimentary rock

Answer: (A) marble, a metamorphic rock

Question: Which kind of rock is produced by deposition and cementation? (A) marble, a metamorphic rock (B) sandstone, a sedimentary rock (C) granite, an intrusive igneous rock (D) pumice, an extrusive igneous rock Answer: (B) sandstone, a sedimentary rock

null

Question: What is undesirable in a running water system such as Moutere Stream? (A) fully digested vegetative matter (B) partially digested vegetative matter (C) animal waste (D) toxic chemicals Answer: (B) partially digested vegetative matter

Mercury_7044538

Which instrument should a student use to best examine bacteria?

{ "label": [ "A", "B", "C", "D" ], "text": [ "telescope", "hand lens", "microscope", "computer probes" ] }

C

Question: Which instrument should a student use to best examine bacteria? (A) telescope (B) hand lens (C) microscope (D) computer probes

Answer: (C) microscope

Answer: (D) computer probes

Question: Which instrument should a student use to best examine bacteria? (A) telescope (B) hand lens (C) microscope (D) computer probes Answer: (C) microscope

NYSEDREGENTS_2005_4_24

When a person speaks into a telephone, sound energy is changed mostly into which form of energy?

{ "label": [ "A", "B", "C", "D" ], "text": [ "heat", "light", "electrical", "chemical" ] }

C

Question: When a person speaks into a telephone, sound energy is changed mostly into which form of energy? (A) heat (B) light (C) electrical (D) chemical

Answer: (C) electrical

Answer: (B) light

Question: When a person speaks into a telephone, sound energy is changed mostly into which form of energy? (A) heat (B) light (C) electrical (D) chemical Answer: (C) electrical

Mercury_7218715

Which phase change in the atmosphere forms clouds?

{ "label": [ "A", "B", "C", "D" ], "text": [ "evaporation", "freezing", "condensation", "melting" ] }

C

Question: Which phase change in the atmosphere forms clouds? (A) evaporation (B) freezing (C) condensation (D) melting

Answer: (C) condensation

Answer: (B) freezing

Question: Which phase change in the atmosphere forms clouds? (A) evaporation (B) freezing (C) condensation (D) melting Answer: (C) condensation

NCEOGA_2013_5_58

Why do dogs have most of the characteristics of their parents?

{ "label": [ "A", "B", "C", "D" ], "text": [ "They inherit them from their parents.", "They live in the same habitats as their parents.", "They learn them by observing their parents.", "They eat the same foods as their parents." ] }

A

Question: Why do dogs have most of the characteristics of their parents? (A) They inherit them from their parents. (B) They live in the same habitats as their parents. (C) They learn them by observing their parents. (D) They eat the same foods as their parents.

Answer: (A) They inherit them from their parents.

Answer: (D) They eat the same foods as their parents.

Question: Why do dogs have most of the characteristics of their parents? (A) They inherit them from their parents. (B) They live in the same habitats as their parents. (C) They learn them by observing their parents. (D) They eat the same foods as their parents. Answer: (A) They inherit them from their parents.

null

Sex can break up good genetic combinations

null

For such determinations, many different types of genetic material are examined and compared.

null

Some fruit grows in areas.

null

4) Are made of cells

MCAS_2016_8_5

An engineer constructs a prototype from wood. Which of the following is the best tool for the engineer to use to make the prototype's surface smooth?

{ "label": [ "A", "B", "C", "D" ], "text": [ "band saw", "chisel", "drill", "sandpaper" ] }

D

Question: An engineer constructs a prototype from wood. Which of the following is the best tool for the engineer to use to make the prototype's surface smooth? (A) band saw (B) chisel (C) drill (D) sandpaper

Answer: (D) sandpaper

Answer: (A) band saw

Question: An engineer constructs a prototype from wood. Which of the following is the best tool for the engineer to use to make the prototype's surface smooth? (A) band saw (B) chisel (C) drill (D) sandpaper Answer: (D) sandpaper

null

Some vigorous growth takes places.

null

Each one of the central cells gives rise to a single sperm.

null

Let’s start with insects.

Mercury_7132423

The human body is made up of organ systems that work together as one unit. Which systems work together to prepare and distribute food for cells?

{ "label": [ "A", "B", "C", "D" ], "text": [ "digestive and circulatory", "digestive and endocrine", "nervous and respiratory", "nervous and excretory" ] }

A

Question: The human body is made up of organ systems that work together as one unit. Which systems work together to prepare and distribute food for cells? (A) digestive and circulatory (B) digestive and endocrine (C) nervous and respiratory (D) nervous and excretory

Answer: (A) digestive and circulatory

Answer: (D) nervous and excretory

Question: The human body is made up of organ systems that work together as one unit. Which systems work together to prepare and distribute food for cells? (A) digestive and circulatory (B) digestive and endocrine (C) nervous and respiratory (D) nervous and excretory Answer: (A) digestive and circulatory

null

Energy enters as sunlight and exits as heat, while chemicals cycle in the ecosystem.

Mercury_7133840

Pedro shook a can of soda. When the soda was opened, foam and soda burst from the can. Which statement best explains what happened?

{ "label": [ "A", "B", "C", "D" ], "text": [ "A new substance was formed.", "The gas pressure was released from the can.", "The sugar in the soda turned into a gas.", "The can absorbed heat from the air." ] }

B

Question: Pedro shook a can of soda. When the soda was opened, foam and soda burst from the can. Which statement best explains what happened? (A) A new substance was formed. (B) The gas pressure was released from the can. (C) The sugar in the soda turned into a gas. (D) The can absorbed heat from the air.

Answer: (B) The gas pressure was released from the can.

Answer: (D) The can absorbed heat from the air.

Question: Pedro shook a can of soda. When the soda was opened, foam and soda burst from the can. Which statement best explains what happened? (A) A new substance was formed. (B) The gas pressure was released from the can. (C) The sugar in the soda turned into a gas. (D) The can absorbed heat from the air. Answer: (B) The gas pressure was released from the can.

AIMS_2009_4_21

While Anna was testing a circuit, she dropped a light bulb. What is the safest thing Anna can do?

{ "label": [ "A", "B", "C", "D" ], "text": [ "get a new bulb to finish the test", "push the broken glass under a table", "tell her teacher that she broke the bulb", "ask her partner to help pick up the broken glass" ] }

C

Question: While Anna was testing a circuit, she dropped a light bulb. What is the safest thing Anna can do? (A) get a new bulb to finish the test (B) push the broken glass under a table (C) tell her teacher that she broke the bulb (D) ask her partner to help pick up the broken glass

Answer: (C) tell her teacher that she broke the bulb

Answer: (A) get a new bulb to finish the test

Question: While Anna was testing a circuit, she dropped a light bulb. What is the safest thing Anna can do? (A) get a new bulb to finish the test (B) push the broken glass under a table (C) tell her teacher that she broke the bulb (D) ask her partner to help pick up the broken glass Answer: (C) tell her teacher that she broke the bulb

Mercury_7081445

An earthquake in the Earth's crust under the ocean releases sound waves. Which statement accurately describes how the sound waves spread?

{ "label": [ "A", "B", "C", "D" ], "text": [ "They spread in all directions away from their source.", "They remain trapped near the source by water pressure.", "They travel mostly horizontally along the ocean floor.", "They travel mostly upward toward the surface of the water." ] }

A

Question: An earthquake in the Earth's crust under the ocean releases sound waves. Which statement accurately describes how the sound waves spread? (A) They spread in all directions away from their source. (B) They remain trapped near the source by water pressure. (C) They travel mostly horizontally along the ocean floor. (D) They travel mostly upward toward the surface of the water.

Answer: (A) They spread in all directions away from their source.

Answer: (B) They remain trapped near the source by water pressure.

Question: An earthquake in the Earth's crust under the ocean releases sound waves. Which statement accurately describes how the sound waves spread? (A) They spread in all directions away from their source. (B) They remain trapped near the source by water pressure. (C) They travel mostly horizontally along the ocean floor. (D) They travel mostly upward toward the surface of the water. Answer: (A) They spread in all directions away from their source.

Mercury_SC_408506

Which part of a strawberry plant absorbs most of the water needed by the plant?

{ "label": [ "A", "B", "C", "D" ], "text": [ "flowers", "fruits", "leaves", "roots" ] }

D

Question: Which part of a strawberry plant absorbs most of the water needed by the plant? (A) flowers (B) fruits (C) leaves (D) roots

Answer: (D) roots

Answer: (C) leaves

Question: Which part of a strawberry plant absorbs most of the water needed by the plant? (A) flowers (B) fruits (C) leaves (D) roots Answer: (D) roots

null

Question: What do areas modified by agricultural practices tend to provide deer with? (A) Water (B) Shelter (C) Forage (D) Nesting materials Answer: (C) Forage

null

Individual females usually contain 2,000 to 7,000 eggs per pound of body weight, with an average of about 4,000 eggs per female.

Mercury_7108938

Large populations of tortoises inhabited the Galapagos Islands before humans. When humans settled on the islands and introduced goats, the number of tortoise declined. What is most likely the explanation for the decrease in the tortoise population?

{ "label": [ "A", "B", "C", "D" ], "text": [ "Goats consume tortoise hatchlings.", "Goats pollute water sources.", "Goats compete with tortoises for vegetation.", "Goats contribute to soil erosion." ] }

C

Question: Large populations of tortoises inhabited the Galapagos Islands before humans. When humans settled on the islands and introduced goats, the number of tortoise declined. What is most likely the explanation for the decrease in the tortoise population? (A) Goats consume tortoise hatchlings. (B) Goats pollute water sources. (C) Goats compete with tortoises for vegetation. (D) Goats contribute to soil erosion.

Answer: (C) Goats compete with tortoises for vegetation.

Answer: (B) Goats pollute water sources.

Question: Large populations of tortoises inhabited the Galapagos Islands before humans. When humans settled on the islands and introduced goats, the number of tortoise declined. What is most likely the explanation for the decrease in the tortoise population? (A) Goats consume tortoise hatchlings. (B) Goats pollute water sources. (C) Goats compete with tortoises for vegetation. (D) Goats contribute to soil erosion. Answer: (C) Goats compete with tortoises for vegetation.

ACTAAP_2009_7_2

Sodium chloride, commonly called "table salt," is made up of sodium and chlorine that have been combined chemically. Which term best describes sodium chloride?

{ "label": [ "A", "B", "C", "D" ], "text": [ "Acid", "Atom", "Element", "Compound" ] }

D

Question: Sodium chloride, commonly called "table salt," is made up of sodium and chlorine that have been combined chemically. Which term best describes sodium chloride? (A) Acid (B) Atom (C) Element (D) Compound

Answer: (D) Compound

Answer: (B) Atom

Question: Sodium chloride, commonly called "table salt," is made up of sodium and chlorine that have been combined chemically. Which term best describes sodium chloride? (A) Acid (B) Atom (C) Element (D) Compound Answer: (D) Compound

null

Sometimes you can turn a liquid into a gas.

MCAS_2005_9_13

A 10 g sample of aluminum and a 10 g sample of iron were each heated by 100 joules of energy. The temperature of the aluminum sample rose 11°C, while the temperature of the iron sample increased 23°C. Which statement best accounts for these results?

{ "label": [ "A", "B", "C", "D" ], "text": [ "Iron is twice as dense as aluminum.", "Atoms of aluminum are smaller than atoms of iron.", "Using equal masses results in similar heat capacities.", "The specific heat of iron is less than that of aluminum." ] }

D

Question: A 10 g sample of aluminum and a 10 g sample of iron were each heated by 100 joules of energy. The temperature of the aluminum sample rose 11°C, while the temperature of the iron sample increased 23°C. Which statement best accounts for these results? (A) Iron is twice as dense as aluminum. (B) Atoms of aluminum are smaller than atoms of iron. (C) Using equal masses results in similar heat capacities. (D) The specific heat of iron is less than that of aluminum.

Answer: (D) The specific heat of iron is less than that of aluminum.

Answer: (B) Atoms of aluminum are smaller than atoms of iron.

Question: A 10 g sample of aluminum and a 10 g sample of iron were each heated by 100 joules of energy. The temperature of the aluminum sample rose 11°C, while the temperature of the iron sample increased 23°C. Which statement best accounts for these results? (A) Iron is twice as dense as aluminum. (B) Atoms of aluminum are smaller than atoms of iron. (C) Using equal masses results in similar heat capacities. (D) The specific heat of iron is less than that of aluminum. Answer: (D) The specific heat of iron is less than that of aluminum.

null

They consume water as a reactant.

Mercury_186270

What type of galaxy is the Milky Way?

{ "label": [ "A", "B", "C", "D" ], "text": [ "spiral", "elliptical", "irregular", "oval" ] }

A

Question: What type of galaxy is the Milky Way? (A) spiral (B) elliptical (C) irregular (D) oval

Answer: (A) spiral

Answer: (B) elliptical

Question: What type of galaxy is the Milky Way? (A) spiral (B) elliptical (C) irregular (D) oval Answer: (A) spiral

NYSEDREGENTS_2007_8_36

Water at 20°C in an uncovered pan is evaporating very slowly. What could be done to the water to make it evaporate more quickly?

{ "label": [ "1", "2", "3", "4" ], "text": [ "Cover it.", "Heat it.", "Place it in the dark.", "Put salt in it." ] }

2

Question: Water at 20°C in an uncovered pan is evaporating very slowly. What could be done to the water to make it evaporate more quickly? (1) Cover it. (2) Heat it. (3) Place it in the dark. (4) Put salt in it.

Answer: (2) Heat it.

Answer: (1) Cover it.

Question: Water at 20°C in an uncovered pan is evaporating very slowly. What could be done to the water to make it evaporate more quickly? (1) Cover it. (2) Heat it. (3) Place it in the dark. (4) Put salt in it. Answer: (2) Heat it.

null

Historic changes in species' distributions and abundance illustrate that culling programmes can be very effective at reducing predator density, although such substantive impacts are generally considered undesirable for native predators.

null

Some gardeners find diseases.

null

The species involved in these events were identified as potential predators.

Mercury_LBS10959

A student is measuring the distance a car travels down a ramp using yards. Which measurement is most similar in length when using the metric system of measurement?

{ "label": [ "A", "B", "C", "D" ], "text": [ "centimeter", "kilometer", "millimeter", "meter" ] }

D

Question: A student is measuring the distance a car travels down a ramp using yards. Which measurement is most similar in length when using the metric system of measurement? (A) centimeter (B) kilometer (C) millimeter (D) meter

Answer: (D) meter

Answer: (C) millimeter

Question: A student is measuring the distance a car travels down a ramp using yards. Which measurement is most similar in length when using the metric system of measurement? (A) centimeter (B) kilometer (C) millimeter (D) meter Answer: (D) meter

null

A body in motion has energy.

null

Question: In mammalian arboreal folivores, what behavior has been convergently evolved a strikingly high number of times? (A) burrowing (B) swimming (C) gliding (D) flying Answer: (C) gliding

null

Some viral diseases result in death.