LS.10 The student will investigate and understand that ecosystems, communities, populations, and organisms are dynamic, change over time, and respond to daily, seasonal, and long-term changes in their environment. Key concepts include phototropism, hibernation, and dormancy; factors that increase or decrease population size; and eutrophication, climate changes, and catastrophic disturbances. Essential Understandings Essential Knowledge, Skills, and Processes The concepts developed in this standard include the following: In order to meet this standard, it is expected that students will Organisms may exist as members of a population; populations interact relate the responses of organisms to daily, seasonal, or long-term with other populations in a community; and communities together with events. the physical environment form ecosystems. differentiate between ecosystems, communities, populations, and Changes that affect organisms over time may be daily, seasonal, or long organisms. term. predict the effect of climate change on ecosystems, communities, Plants may respond to light by growing toward it or away from it, a populations, and organisms. behavior known as phototropism. predict the effect of eutrophication on ecosystems, communities, Animals may respond to cold conditions with a period of lowered populations, and organisms. metabolism, a behavior known as hibernation. compare and contrast the factors that increase or decrease population Organisms may respond to adverse conditions with a period of lowered size. or suspended metabolism, a behavior known as dormancy. classify the various types of changes that occur over time in A variety of environmental factors may cause the size of a population to ecosystems, communities, populations, and organisms, as long term, increase or decrease. (This requires students to brainstorm examples of short term, or seasonal. factors and predict the possible effects.) design an investigation from a testable question related to change over Long-term changes may affect entire communities and ecosystems. time in ecosystems, communities, populations, or organisms. The Such large-scale changes include the addition of excess nutrients to the investigation may be a complete experimental design or may focus on system (eutrophication), which alters environmental balance; dramatic systematic observation, description, measurement, and/or data changes in climate; and catastrophic events, such as fire, drought, flood, collection and analysis. and earthquakes. analyze and critique the experimental design of basic investigations related to change over time in ecosystems, communities, populations, and organisms.
LS.10 The student will investigate and understand that ecosystems, communities, populations, and organisms are dynamic, change over time, and respond to daily, seasonal, and long-term changes in their environment. Key concepts include phototropism, hibernation, and dormancy; factors that increase or decrease population size; and eutrophication, climate changes, and catastrophic disturbances. Essential Understandings Essential Knowledge, Skills, and Processes The concepts developed in this standard include the following: Organisms may exist as members of a population; populations interact with other populations in a community; and communities together with the physical environment form ecosystems. Changes that affect organisms over time may be daily, seasonal, or long term. Plants may respond to light by growing toward it or away from it, a behavior known as phototropism. Animals may respond to cold conditions with a period of lowered metabolism, a behavior known as hibernation. Organisms may respond to adverse conditions with a period of lowered or suspended metabolism, a behavior known as dormancy. A variety of environmental factors may cause the size of a population to increase or decrease. (This requires students to brainstorm examples of factors and predict the possible effects.) Long-term changes may affect entire communities and ecosystems. Such large-scale changes include the addition of excess nutrients to the system (eutrophication), which alters environmental balance; dramatic changes in climate; and catastrophic events, such as fire, drought, flood, and earthquakes. In order to meet this standard, it is expected that students will relate the responses of organisms to daily, seasonal, or long-term events. differentiate between ecosystems, communities, populations, and organisms. predict the effect of climate change on ecosystems, communities, populations, and organisms. predict the effect of eutrophication on ecosystems, communities, populations, and organisms. compare and contrast the factors that increase or decrease population size. classify the various types of changes that occur over time in ecosystems, communities, populations, and organisms, as long term, short term, or seasonal. design an investigation from a testable question related to change over time in ecosystems, communities, populations, or organisms. The investigation may be a complete experimental design or may focus on systematic observation, description, measurement, and/or data collection and analysis. analyze and critique the experimental design of basic investigations related to change over time in ecosystems, communities, populations, and organisms.