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<image>
Context: The passage below describes an experiment.
Zeke grew ten on his back porch. He grew each plant in its own pot. Zeke noticed that his plants did not grow many leaves, and he wanted to see if earthworms could help them grow more.
Zeke divided his ten plants into two equal groups. He added three earthworms each to the soil in five of the pots. He did not add any earthworms to the other five pots. Two months later, he counted the number of leaves on each of the ten plants.
Figure: mint plants.
In this experiment, which were part of a control group?
A. the mint plants that did not get earthworms
B. the mint plants that got earthworms
Answer with the option's letter from the given choices directly. | A |
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<image>
Context: This continuum scale shows the sizes of the inner planets of our solar system.
Based on the continuum scale, which planet is larger than Mars?
A. Mercury
B. Earth
Answer with the option's letter from the given choices directly. | B |
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<image>
Context: Figure: Kermadec Arc.
The Kermadec Arc is a deep sea ecosystem in the southern Pacific Ocean.
Which better describes the Kermadec Arc ecosystem?
A. It has no sunlight. It also has many large swimming organisms.
B. It has no sunlight. It also has organisms that crawl or stick to the ground.
Answer with the option's letter from the given choices directly. | B |
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<image>
What is the capital of Michigan?
A. Detroit
B. Lansing
C. Des Moines
D. Lincoln
Answer with the option's letter from the given choices directly. | B |
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<image>
Context: The images below show two pairs of magnets. The magnets in different pairs do not affect each other. All the magnets shown are made of the same material.
Think about the magnetic force between the magnets in each pair. Which of the following statements is true?
A. The strength of the magnetic force is the same in both pairs.
B. The magnetic force is weaker in Pair 2.
C. The magnetic force is weaker in Pair 1.
Answer with the option's letter from the given choices directly. | A |
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<image>
Context: The images below show two pairs of magnets. The magnets in different pairs do not affect each other. All the magnets shown are made of the same material, but some of them are different sizes and shapes.
Think about the magnetic force between the magnets in each pair. Which of the following statements is true?
A. The magnitude of the magnetic force is smaller in Pair 1.
B. The magnitude of the magnetic force is the same in both pairs.
C. The magnitude of the magnetic force is smaller in Pair 2.
Answer with the option's letter from the given choices directly. | C |
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<image>
Context: Brown rats eat plant matter, such as leaves, stems, and seeds. They eat by biting off small pieces at a time, or gnawing. The rat's mouth is adapted for gnawing.
Figure: brown rat.
Which animal's mouth is also adapted for gnawing?
A. cougar
B. Podolsk mole rat
Answer with the option's letter from the given choices directly. | B |
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<image>
Context: Select the better answer.
Which property do these two objects have in common?
A. yellow
B. stretchy
Answer with the option's letter from the given choices directly. | A |
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<image>
What is the capital of Maryland?
A. Annapolis
B. Athens
C. Davenport
D. Dallas
Answer with the option's letter from the given choices directly. | A |
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<image>
Context: Northern pintails eat plants that grow underwater or in mud. The shape of the 's beak is adapted to filter through mud for food.
The gathers muddy water in its beak and then pushes it out through gaps along the sides. Bits of food, such as plant roots, are left behind inside the pintail's beak.
Figure: northern pintail.
Which bird's beak is also adapted to filter through mud?
A. common nighthawk
B. black swan
Answer with the option's letter from the given choices directly. | B |
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<image>
Context: Figure: Tongue Point Marine Life Sanctuary.
Tongue Point Marine Life Sanctuary is in western Washington State. The park is on the coast of the Pacific Ocean. It has many tide pool ecosystems.
Which better describes the tide pool ecosystems in Tongue Point Marine Life Sanctuary?
A. It has daily flooding and draining of seawater. It also has water that is rich in nutrients.
B. It has no sunlight. It also has daily flooding and draining of seawater.
Answer with the option's letter from the given choices directly. | A |
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<image>
Which of these states is farthest west?
A. Connecticut
B. Maine
C. Pennsylvania
D. Vermont
Answer with the option's letter from the given choices directly. | C |
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<image>
Context: Select the best answer.
Which property do these three objects have in common?
A. blue
B. scratchy
C. transparent
Answer with the option's letter from the given choices directly. | B |
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<image>
Context: This diagram shows a food chain from a tropical coral reef ecosystem off the coast of Australia.
In this food chain, the diatom is a producer. Why?
A. It eats a consumer.
B. It makes its own food.
C. It eats another organism.
Answer with the option's letter from the given choices directly. | B |
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<image>
Which country is highlighted?
A. New Zealand
B. Papua New Guinea
C. Solomon Islands
D. Australia
Answer with the option's letter from the given choices directly. | D |
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<image>
Context: Camels live in dry places such as deserts. The is adapted to be camouflaged in a sandy desert.
Figure: camel.
Which animal is also adapted to be camouflaged in a sandy desert?
A. bearded dragon
B. scarlet snake
Answer with the option's letter from the given choices directly. | A |
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<image>
Context: Birds have feathers, two wings, and a beak. A keel-billed toucan is an example of a bird.
Select the bird below.
A. Chinese alligator
B. pelican
Answer with the option's letter from the given choices directly. | B |
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<image>
Which continent is highlighted?
A. South America
B. Antarctica
C. Africa
D. Asia
Answer with the option's letter from the given choices directly. | B |
|
<image>
Which material is this aluminum foil made of?
A. plastic
B. metal
Answer with the option's letter from the given choices directly. | B |
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<image>
What is the name of the colony shown?
A. Connecticut
B. North Carolina
C. Maryland
D. Indiana
Answer with the option's letter from the given choices directly. | B |
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<image>
Which state is highlighted?
A. Oregon
B. California
C. Montana
D. Nevada
Answer with the option's letter from the given choices directly. | C |
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<image>
Context: Figure: Catoctin Mountain Park.
Catoctin Mountain Park is a temperate deciduous forest ecosystem in Maryland. Most of this forest was cut down for its wood in the early 1900s. But since the 1940s, conservation efforts have allowed the forest to return to much of this park.
Which statement describes the Catoctin Mountain Park ecosystem?
A. It has only a few types of trees.
B. It has soil that is poor in nutrients.
Answer with the option's letter from the given choices directly. | A |
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<image>
What is the capital of Vermont?
A. Olympia
B. Concord
C. Burlington
D. Montpelier
Answer with the option's letter from the given choices directly. | D |
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<image>
Context: Fish live underwater. They have fins, not limbs.
Fish are cold-blooded. The body temperature of cold-blooded animals depends on their environment.
A tiger shark is an example of a fish.
Select the fish below.
A. green chameleon
B. goldfish
C. fruit bat
D. great crested newt
Answer with the option's letter from the given choices directly. | B |
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<image>
Context: The diagrams below show two pure samples of gas in identical closed, rigid containers. Each colored ball represents one gas particle. Both samples have the same number of particles.
Compare the average kinetic energies of the particles in each sample. Which sample has the higher temperature?
A. sample A
B. neither; the samples have the same temperature
C. sample B
Answer with the option's letter from the given choices directly. | A |
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<image>
Context: Two magnets are placed as shown.
Will these magnets attract or repel each other?
A. repel
B. attract
Answer with the option's letter from the given choices directly. | B |
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<image>
Context: Two magnets are placed as shown.
Will these magnets attract or repel each other?
A. repel
B. attract
Answer with the option's letter from the given choices directly. | A |
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<image>
Context: Trade happens when people agree to exchange goods and services. People give up something to get something else. Sometimes people barter, or directly exchange one good or service for another.
Perry and Antonio open their lunch boxes in the school cafeteria. Both of them could be happier with their lunches. Perry wanted broccoli in his lunch and Antonio was hoping for tomatoes. Look at the images of their lunches. Then answer the question below.
What can Perry and Antonio trade to each get what they want?
A. Antonio can trade his almonds for Perry's tomatoes.
B. Perry can trade his tomatoes for Antonio's sandwich.
C. Perry can trade his tomatoes for Antonio's broccoli.
D. Antonio can trade his broccoli for Perry's oranges.
Answer with the option's letter from the given choices directly. | C |
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<image>
Context: Use the data to answer the question below.
Is the following statement about our solar system true or false?
Earth is the largest planet that is made mainly of rock.
A. true
B. false
Answer with the option's letter from the given choices directly. | A |
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<image>
Look at the models of molecules below. Select the elementary substance.
A. ethane
B. carbon tetraiodide
C. oxygen
Answer with the option's letter from the given choices directly. | C |
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<image>
Context: The images below show two pairs of magnets. The magnets in different pairs do not affect each other. All the magnets shown are made of the same material.
Think about the magnetic force between the magnets in each pair. Which of the following statements is true?
A. The magnitude of the magnetic force is greater in Pair 2.
B. The magnitude of the magnetic force is the same in both pairs.
C. The magnitude of the magnetic force is greater in Pair 1.
Answer with the option's letter from the given choices directly. | C |
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<image>
Context: Two magnets are placed as shown.
Will these magnets attract or repel each other?
A. attract
B. repel
Answer with the option's letter from the given choices directly. | A |
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<image>
Context: Two magnets are placed as shown.
Will these magnets attract or repel each other?
A. repel
B. attract
Answer with the option's letter from the given choices directly. | A |
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<image>
What is the capital of Oklahoma?
A. Little Rock
B. Tulsa
C. Oklahoma City
D. Trenton
Answer with the option's letter from the given choices directly. | C |
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<image>
Context: The passage below describes an experiment. Read the passage and then follow the instructions below.
Julia applied a thin layer of wax to the underside of her snowboard and rode the board straight down a hill. Then, she removed the wax and rode the snowboard straight down the hill again. She repeated the rides four more times, alternating whether she rode with a thin layer of wax on the board or not. Her friend Andy timed each ride. Julia and Andy calculated the average time it took to slide straight down the hill on the snowboard with wax compared to the average time on the snowboard without wax.
Figure: snowboarding down a hill.
Identify the question that Julia and Andy's experiment can best answer.
A. Does Julia's snowboard slide down a hill in less time when it has a layer of wax or when it does not have a layer of wax?
B. Does Julia's snowboard slide down a hill in less time when it has a thin layer of wax or a thick layer of wax?
Answer with the option's letter from the given choices directly. | A |
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<image>
What is the name of the colony shown?
A. West Virginia
B. Virginia
C. Delaware
D. North Carolina
Answer with the option's letter from the given choices directly. | B |
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<image>
Context: The passage below describes an experiment. Read the passage and then follow the instructions below.
Shawn divided 40 evenly among eight paper bags and sealed the bags. He poked 20 small holes in four of the bags and left the other four without holes. He kept the bags at room temperature for three days. Then, Shawn opened the bags and counted the number of brown spots on each banana. He compared the average number of brown spots on bananas from bags with holes to the average number of brown spots on bananas from bags without holes.
Figure: unripe bananas.
Identify the question that Shawn's experiment can best answer.
A. Do bananas develop more brown spots when they are kept at room temperature compared to in a cold refrigerator?
B. Do bananas develop more brown spots if they are kept in bags with holes compared to bags without holes?
Answer with the option's letter from the given choices directly. | B |
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<image>
Context: The following passage describes the effects of a gene mutation, which is a permanent change in a gene. Read the passage and then follow the instructions below.
Some plant proteins control how flowers grow and develop. In Arabidopsis thaliana (A. thaliana) plants, one of these proteins is called ULTRAPETALA1. The ULTRAPETALA1 protein is encoded by the ULT1 gene.
The ULTRAPETALA1 protein allows only a specific number of cells in the growing flower bud to divide and form petals. This results in A. thaliana flowers with four petals.
A certain A. thaliana plant had a mutation in the ULT1 gene that caused the plant to have flowers with six petals instead of four. Compared to the ULT1 gene without a mutation, the mutated ULT1 gene encoded a form of the ULTRAPETALA1 protein with a different structure.
This different form of the ULTRAPETALA1 protein allowed more cells than normal to grow and form petals.
Figure: an A. thaliana flower with four petals.
Complete the sentence.
The mutation in the () affected the structure and function of the ().
A. ULTRAPETALA1 protein . . . ULT1 gene
B. ULT1 gene . . . ULTRAPETALA1 protein
Answer with the option's letter from the given choices directly. | B |
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<image>
Context: Use the graph to answer the question below.
Which month has the lowest average temperature in Amsterdam?
A. January
B. February
C. November
Answer with the option's letter from the given choices directly. | B |
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<image>
Context: The passage below describes an experiment. Read the passage and think about the variables that are described.
Pablo wanted to grow cucumbers from seeds. He read that using a heating pad to heat up potting soil could help make seeds germinate, or sprout, faster. Pablo wondered whether the temperature of the heating pad would affect how quickly the seeds germinated.
Pablo prepared two potting trays, each made up of ten small pots of soil. He planted one cucumber seed in each small pot and arranged the potting trays near a sunny window. He set an electric heating pad to 75°F and placed it under one potting tray. He set a second heating pad to 85°F and placed it under the other potting tray. Pablo observed the pots daily, and he counted the number of days it took until a seed germinated in each pot.
Hint: An independent variable is a variable whose effect you are investigating. A dependent variable is a variable that you measure.
Figure: germinating plants in a potting tray.
Which of the following was an independent variable in this experiment?
A. the number of days until a seed germinated
B. the temperature of the heating pad
Answer with the option's letter from the given choices directly. | B |
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<image>
Context: The images below show two pairs of magnets. The magnets in different pairs do not affect each other. All the magnets shown are made of the same material.
Think about the magnetic force between the magnets in each pair. Which of the following statements is true?
A. The magnetic force is stronger in Pair 1.
B. The strength of the magnetic force is the same in both pairs.
C. The magnetic force is stronger in Pair 2.
Answer with the option's letter from the given choices directly. | B |
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<image>
Context: Humpback whales are found in the world's oceans. They live underwater, but come to the surface to breathe air.
The has flippers for limbs. Its limbs are adapted for swimming.
Figure: humpback whale.
Which animal's limbs are also adapted for swimming?
A. nilgai
B. California sea lion
Answer with the option's letter from the given choices directly. | B |
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<image>
Context: The images below show two pairs of magnets. The magnets in different pairs do not affect each other. All the magnets shown are made of the same material.
Think about the magnetic force between the magnets in each pair. Which of the following statements is true?
A. The magnitude of the magnetic force is greater in Pair 2.
B. The magnitude of the magnetic force is greater in Pair 1.
C. The magnitude of the magnetic force is the same in both pairs.
Answer with the option's letter from the given choices directly. | A |
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<image>
Context: The diagram below is a model of two solutions. Each pink ball represents one particle of solute.
Which solution has a higher concentration of pink particles?
A. neither; their concentrations are the same
B. Solution B
C. Solution A
Answer with the option's letter from the given choices directly. | C |
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<image>
Context: Evening grosbeaks eat small, hard seeds. The shape of the 's beak is adapted to crack open small, hard seeds.
Figure: evening grosbeak.
Which bird's beak is also adapted to crack hard seeds?
A. indigo bunting
B. Asian openbill
Answer with the option's letter from the given choices directly. | A |
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<image>
What is the capital of Pennsylvania?
A. Pittsburgh
B. Philadelphia
C. Harrisburg
D. Montpelier
Answer with the option's letter from the given choices directly. | C |
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<image>
Context: A watermelon plant can grow seeds.
Which part of the watermelon plant makes the seeds?
A. the fruit
B. the flowers
Answer with the option's letter from the given choices directly. | B |
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<image>
What is the capital of Maryland?
A. Jefferson City
B. Albany
C. Annapolis
D. Dover
Answer with the option's letter from the given choices directly. | C |
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<image>
Which of these states is farthest west?
A. Massachusetts
B. South Dakota
C. South Carolina
D. Maine
Answer with the option's letter from the given choices directly. | B |
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<image>
Context: The following passage describes the effects of a gene mutation, which is a permanent change in a gene. Read the passage and then follow the instructions below.
A pea plant's height is affected by substances that are made inside the plant's cells. One of these substances is called gibberellin.
Gibberellin is made in a pea plant's cells by a protein called GA 3-oxidase. The GA 3-oxidase protein is encoded by the LH gene.
A certain pea plant had a mutation in its LH gene. Compared to the LH gene without a mutation, the mutated LH gene encoded a form of the GA 3-oxidase protein with a different structure.
This different form of the GA 3-oxidase protein could make only a small amount of gibberellin. The plant with the mutation grew to a shorter height than pea plants containing more gibberellin.
Figure: pea plants with different amounts of gibberellin.
Complete the sentence.
The mutation in the () affected the structure and function of the ().
A. GA 3-oxidase protein . . . LH gene
B. LH gene . . . GA 3-oxidase protein
Answer with the option's letter from the given choices directly. | B |
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<image>
Context: The images below show two pairs of magnets. The magnets in different pairs do not affect each other. All the magnets shown are made of the same material, but some of them are different sizes.
Think about the magnetic force between the magnets in each pair. Which of the following statements is true?
A. The magnitude of the magnetic force is smaller in Pair 1.
B. The magnitude of the magnetic force is smaller in Pair 2.
C. The magnitude of the magnetic force is the same in both pairs.
Answer with the option's letter from the given choices directly. | B |
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<image>
Context: The model below represents a molecule of hydrazine. Hydrazine is used in some types of rocket fuels.
Complete the statement.
Hydrazine is ().
A. an elementary substance
B. a compound
Answer with the option's letter from the given choices directly. | B |
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<image>
Which country is highlighted?
A. Samoa
B. Papua New Guinea
C. New Zealand
D. Australia
Answer with the option's letter from the given choices directly. | C |
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<image>
Which of these states is farthest south?
A. Colorado
B. Pennsylvania
C. Oregon
D. Connecticut
Answer with the option's letter from the given choices directly. | A |
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<image>
Which ocean is highlighted?
A. the Atlantic Ocean
B. the Pacific Ocean
C. the Arctic Ocean
D. the Southern Ocean
Answer with the option's letter from the given choices directly. | A |
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<image>
Context: The passage below describes an experiment. Read the passage and then follow the instructions below.
Jack put one two-inch steel nail into each of six test tubes. He added water to three of the test tubes and vinegar to the other three. In each test tube, he completely covered the nail with the same volume of liquid. Jack checked the nails for rust at the same time every day. He recorded how many days it took each nail to become completely covered in rust. Then, he compared the number of days it took nails to rust in water to the number of days it took nails to rust in vinegar.
Figure: a new steel nail on a pile of rusty nails.
Identify the question that Jack's experiment can best answer.
A. Do steel nails take fewer days to rust in water compared to vinegar?
B. Do steel nails rust in fewer days when submerged in a large volume of liquid compared to a small volume?
Answer with the option's letter from the given choices directly. | A |
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<image>
What is the capital of Rhode Island?
A. Augusta
B. Newport
C. Trenton
D. Providence
Answer with the option's letter from the given choices directly. | D |
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<image>
Context: The images below show two pairs of magnets. The magnets in different pairs do not affect each other. All the magnets shown are made of the same material, but some of them are different shapes.
Think about the magnetic force between the magnets in each pair. Which of the following statements is true?
A. The magnitude of the magnetic force is the same in both pairs.
B. The magnitude of the magnetic force is smaller in Pair 2.
C. The magnitude of the magnetic force is smaller in Pair 1.
Answer with the option's letter from the given choices directly. | A |
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<image>
Which continent is highlighted?
A. Europe
B. South America
C. North America
D. Antarctica
Answer with the option's letter from the given choices directly. | C |
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<image>
Context: Select the better answer.
Which property matches this object?
A. scratchy
B. yellow
Answer with the option's letter from the given choices directly. | B |
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<image>
Context: Schist has the following properties:
solid
found in nature
no fixed crystal structure
hard
made mostly of pyroxene
not made by living things
Is schist a mineral or a rock?
A. mineral
B. rock
Answer with the option's letter from the given choices directly. | B |
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<image>
What is the name of the colony shown?
A. Maryland
B. New Hampshire
C. South Carolina
D. Georgia
Answer with the option's letter from the given choices directly. | A |
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<image>
Context: Select the best answer.
Which property do these four objects have in common?
A. transparent
B. slippery
C. opaque
Answer with the option's letter from the given choices directly. | B |
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<image>
Context: Select the better answer.
Which property do these two objects have in common?
A. soft
B. slippery
Answer with the option's letter from the given choices directly. | B |
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<image>
Context: Echidnas have sharp spines covering much of their skin. These spines are called quills. The skin of the is adapted to hurt an attacking predator.
Figure: echidna.
Which animal's skin is better adapted to hurt an attacking predator?
A. thorny devil
B. European robin
Answer with the option's letter from the given choices directly. | A |
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<image>
Context: This passage describes the Marfan syndrome trait in humans:
Marfan syndrome is a condition that affects a protein called fibrillin. Fibrillin helps support many parts of the human body and also affects growth. Humans with Marfan syndrome tend to be taller than average and have long limbs, fingers, and toes. They may also have heart problems and other organ issues.
In a group of humans, some individuals have Marfan syndrome and others do not. In this group, the gene for the Marfan syndrome trait has two alleles. The allele for having Marfan syndrome (M) is dominant over the allele for not having Marfan syndrome (m).
This Punnett square shows a cross between two humans.
What is the expected ratio of offspring that do not have Marfan syndrome to offspring that have Marfan syndrome? Choose the most likely ratio.
A. 4:0
B. 0:4
C. 3:1
D. 1:3
E. 2:2
Answer with the option's letter from the given choices directly. | B |
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<image>
Context: s live near rivers and lakes. They eat insects and snails that live on plants floating on the surface of the water.
The feet of the jacana are adapted for walking on large, floating leaves. The jacana uses its feet to spread its weight out over a wide area. This helps the bird walk on the leaves without sinking into the water.
Figure: African jacana.
Which animal's feet are also adapted for walking on large, floating leaves?
A. ostrich
B. northern jacana
Answer with the option's letter from the given choices directly. | B |
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<image>
What is the capital of Nevada?
A. Carson City
B. Trenton
C. Las Vegas
D. Salem
Answer with the option's letter from the given choices directly. | A |
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<image>
Context: Trade happens when people agree to exchange goods and services. People give up something to get something else. Sometimes people barter, or directly exchange one good or service for another.
Patty and Tisha open their lunch boxes in the school cafeteria. Neither Patty nor Tisha got everything that they wanted. The table below shows which items they each wanted:
Look at the images of their lunches. Then answer the question below.
Patty's lunch Tisha's lunch
What can Patty and Tisha trade to each get what they want?
A. Tisha can trade her broccoli for Patty's oranges.
B. Patty can trade her tomatoes for Tisha's broccoli.
C. Tisha can trade her almonds for Patty's tomatoes.
D. Patty can trade her tomatoes for Tisha's carrots.
Answer with the option's letter from the given choices directly. | B |
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<image>
Context: Two identical greenhouses were next to each other. There were solar panels on the roof of one greenhouse but not on the roof of the other greenhouse. This table shows how the temperature of each greenhouse changed over 2hours.
During this time, thermal energy was transferred from () to ().
A. the surroundings . . . each greenhouse
B. each greenhouse . . . the surroundings
Answer with the option's letter from the given choices directly. | A |
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<image>
Context: Figure: Białowieża Forest.
The Białowieża Forest is a temperate deciduous forest ecosystem located in Poland and Belarus. It is one of the largest and oldest forests in Europe.
Which statement describes the Białowieża Forest ecosystem?
A. It has soil that is poor in nutrients.
B. It has soil that is rich in nutrients.
Answer with the option's letter from the given choices directly. | B |
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<image>
Context: Use the data to answer the question below.
Is the following statement about our solar system true or false?
50% of the planets are made mainly of gas.
A. false
B. true
Answer with the option's letter from the given choices directly. | A |
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<image>
Context: Before sunrise on November 14, 1963, the crew of the fishing boat Isleifur II had just finished putting their lines in the ocean off the southern coast of Iceland. As the crew waited to have breakfast, a strong smell of sulfur drifted over the boat. At first, crew members thought that the cook had burned the eggs or that something was wrong with the boat's engine. But when the sun started to rise, the crew saw black smoke billowing from the water a few kilometers away.
The captain of the Isleifur II assumed the smoke was coming from a boat that was on fire, so he sailed closer to try to help. As the Isleifur II approached the smoke, the surface of the sea grew rough. The captain and crew saw flashes of lightning in the column of smoke and glowing pieces of molten rock shooting up out of the water. The captain realized this was not a burning boat. It was a volcano erupting under the water!
Figure: the erupting undersea volcano seen by the sailors on the Isleifur II.
According to the text, what evidence of a volcanic eruption did the captain observe?
A. He heard a report on the radio warning about a volcanic eruption.
B. He smelled sulfur and then realized it was not coming from his boat.
C. He knew his crew had finished putting their fishing lines in the ocean.
Answer with the option's letter from the given choices directly. | B |
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<image>
Context: This passage describes the Thomsen disease trait in humans:
Thomsen disease is a condition that causes temporary muscle stiffness. When a human with Thomsen disease first contracts a resting muscle, the muscle is slow to relax and may stay contracted for a while. But after repeated use, the muscle can contract and relax normally. This is known as the warm-up effect.
In a group of humans, some individuals have Thomsen disease and others do not. In this group, the gene for the Thomsen disease trait has two alleles. The allele for not having Thomsen disease (m) is recessive to the allele for having Thomsen disease (M).
This Punnett square shows a cross between two humans.
What is the expected ratio of offspring that have Thomsen disease to offspring that do not have Thomsen disease? Choose the most likely ratio.
A. 2:2
B. 4:0
C. 0:4
D. 3:1
E. 1:3
Answer with the option's letter from the given choices directly. | A |
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<image>
Context: Use the graph to answer the question below.
Which three months have over 200millimeters of precipitation in Singapore?
A. February, March, and April
B. May, June, and July
C. November, December, and January
Answer with the option's letter from the given choices directly. | C |
|
<image>
Context: In a group of budgerigar parakeets, some individuals have green body feathers and others have blue body feathers. In this group, the gene for the body feather color trait has two alleles. The allele for blue body feathers (b) is recessive to the allele for green body feathers (B).
This Punnett square shows a cross between two budgerigar parakeets.
What is the probability that a budgerigar parakeet produced by this cross will have blue body feathers?
A. 1/4
B. 0/4
C. 3/4
D. 2/4
E. 4/4
Answer with the option's letter from the given choices directly. | E |
|
<image>
Which country is highlighted?
A. Nauru
B. New Zealand
C. Kiribati
D. Australia
Answer with the option's letter from the given choices directly. | D |
|
<image>
What is the capital of Kentucky?
A. Atlanta
B. Frankfort
C. Carson City
D. Nashville
Answer with the option's letter from the given choices directly. | B |
|
<image>
Context: Birds have feathers, two wings, and a beak.
Birds are warm-blooded. Warm-blooded animals can control their body temperature.
A red-tailed hawk is an example of a bird.
Select the bird below.
A. robin
B. porcupinefish
C. tiger shark
D. great crested newt
Answer with the option's letter from the given choices directly. | A |
|
<image>
What is the capital of Connecticut?
A. Providence
B. Albany
C. Hartford
D. Bridgeport
Answer with the option's letter from the given choices directly. | C |
|
<image>
Context: The images below show two pairs of magnets. The magnets in different pairs do not affect each other. All the magnets shown are made of the same material.
Think about the magnetic force between the magnets in each pair. Which of the following statements is true?
A. The magnetic force is weaker in Pair 1.
B. The strength of the magnetic force is the same in both pairs.
C. The magnetic force is weaker in Pair 2.
Answer with the option's letter from the given choices directly. | C |
|
<image>
Context: This organism is a Grevy's zebra. Its scientific name is Equus grevyi.
Select the organism in the same species as the Grevy's zebra.
A. Macropus giganteus
B. Equus grevyi
C. Macropus rufus
Answer with the option's letter from the given choices directly. | B |
|
<image>
What is the capital of New Hampshire?
A. Newport
B. Concord
C. Boston
D. Albany
Answer with the option's letter from the given choices directly. | B |
|
<image>
Which continent is highlighted?
A. Africa
B. North America
C. Europe
D. Australia
Answer with the option's letter from the given choices directly. | D |
|
<image>
What is the capital of Kansas?
A. Frankfort
B. Des Moines
C. Topeka
D. Jefferson City
Answer with the option's letter from the given choices directly. | C |
|
<image>
What is the capital of Pennsylvania?
A. Pittsburgh
B. Harrisburg
C. Hartford
D. Nashville
Answer with the option's letter from the given choices directly. | B |
|
<image>
Context: Use the data to answer the question below.
Is the following statement about our solar system true or false?
There are twice as many ice planets as rocky planets.
A. false
B. true
Answer with the option's letter from the given choices directly. | A |
|
<image>
Context: Use the data to answer the question below.
Is the following statement about our solar system true or false?
The volume of Mars is more than ten times as large as Mercury's.
A. false
B. true
Answer with the option's letter from the given choices directly. | A |
|
<image>
Context: People can use the engineering-design process to develop solutions to problems. One step in the process is testing if a potential solution meets the requirements of the design.
The passage below describes how the engineering-design process was used to test a solution to a problem. Read the passage. Then answer the question below.
Leon was a mechanical engineer who was designing to record temperature, precipitation, and wind speed. The weather station would be used in a town where the highest recorded temperature was 40°C. Leon wanted to make sure the weather station would work even in unusually warm weather.
So, he set an indoor test chamber to 50°C with low moisture and no wind. He left the weather station in the chamber overnight. The next day, he checked to see if the weather station displayed accurate measurements after 24 hours at 50°C.
Figure: a weather station.
Which of the following could Leon's test show?
A. how well the weather station would work when it was windy
B. if the weather station would work when the temperature was 50°C
Answer with the option's letter from the given choices directly. | B |
|
<image>
Context: Trade happens when people agree to exchange goods and services. People give up something to get something else. Sometimes people barter, or directly exchange one good or service for another.
Lexi and Cindy open their lunch boxes in the school cafeteria. Neither Lexi nor Cindy got everything that they wanted. The table below shows which items they each wanted:
Look at the images of their lunches. Then answer the question below.
Lexi's lunch Cindy's lunch
What can Lexi and Cindy trade to each get what they want?
A. Lexi can trade her tomatoes for Cindy's broccoli.
B. Cindy can trade her almonds for Lexi's tomatoes.
C. Cindy can trade her broccoli for Lexi's oranges.
D. Lexi can trade her tomatoes for Cindy's carrots.
Answer with the option's letter from the given choices directly. | A |
|
<image>
Context: Read the text.
When you think of muscles, you might think of the ones in your legs or arms that you use to help you move. These types of muscles are called striated muscles. If you look at them under a microscope, the cells appear rectangular and striped. There are other kinds of muscles, though, called smooth muscles. The cells that make up smooth muscles are oval shaped and not striped. They are found in places like the digestive system, where they help to keep food moving.
Which term matches the picture?
A. striated muscles
B. smooth muscles
Answer with the option's letter from the given choices directly. | B |
|
<image>
Context: Use the data to answer the question below.
Is the following statement about our solar system true or false?
The volume of Mars is more than three times as large as Mercury's.
A. true
B. false
Answer with the option's letter from the given choices directly. | B |
|
<image>
Context: This organism is a zebra dove. It is also called Geopelia striata.
Which is this organism's scientific name?
A. Geopelia striata
B. zebra dove
Answer with the option's letter from the given choices directly. | A |
|
<image>
Which state is highlighted?
A. California
B. New Mexico
C. Hawaii
D. Nevada
Answer with the option's letter from the given choices directly. | A |
|
<image>
Context: The diagrams below show two pure samples of gas in identical closed, rigid containers. Each colored ball represents one gas particle. Both samples have the same number of particles.
Compare the average kinetic energies of the particles in each sample. Which sample has the higher temperature?
A. sample B
B. neither; the samples have the same temperature
C. sample A
Answer with the option's letter from the given choices directly. | A |
|
<image>
Context: The model below represents zinc. Zinc is a metal that is used to make batteries and musical instruments.
Complete the statement.
Zinc is ().
A. an elementary substance
B. a compound
Answer with the option's letter from the given choices directly. | A |
|
<image>
Context: The diagrams below show two pure samples of gas in identical closed, rigid containers. Each colored ball represents one gas particle. Both samples have the same number of particles.
Compare the average kinetic energies of the particles in each sample. Which sample has the higher temperature?
A. neither; the samples have the same temperature
B. sample A
C. sample B
Answer with the option's letter from the given choices directly. | B |
|
<image>
What is the capital of Oregon?
A. Phoenix
B. Portland
C. Columbus
D. Salem
Answer with the option's letter from the given choices directly. | D |
|
<image>
Which country is highlighted?
A. Solomon Islands
B. Nauru
C. Vanuatu
D. Fiji
Answer with the option's letter from the given choices directly. | C |
|
<image>
Which i in column 1?
A. the grocery store
B. the library
C. the gas station
D. the fire department
Answer with the option's letter from the given choices directly. | A |
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