LS.9 The student will investigate and understand how organisms adapt to biotic and abiotic factors in an ecosystem. Key concepts include differences between ecosystems and biomes; characteristics of land, marine, and freshwater ecosystems; and adaptations that enable organisms to survive within a specific ecosystem. 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 The living organisms within a specific area and their physical differentiate between ecosystems and biomes. environment define an ecosystem. recognize and give examples of major biomes: desert, forest, Characteristics of land, marine, and freshwater ecosystems vary with grassland, and tundra. respect to biotic and abiotic factors. compare and contrast the biotic and abiotic characteristics of land, The major terrestrial ecosystems are classified into units called biomes marine, and freshwater ecosystems. large regions characterized by certain conditions, including a range — analyze and describe how specific adaptations enable organisms to of climate and ecological communities adapted to those conditions. survive in a particular ecosystem. Organisms have specific structures, functions, and behaviors that enable design an investigation from a testable question related to how them to survive the biotic and abiotic conditions of the particular specific adaptations of organisms allow them to survive in the ecosystem in which they live. presence of the biotic and abiotic factors in an ecosystem. The Organisms possess adaptations to both biotic and abiotic factors in their investigation may be a complete experimental design or may focus on ecosystem that increase their chance of survival. systematic observation, description, measurement, and/or data collection and analysis.
LS.9 The student will investigate and understand how organisms adapt to biotic and abiotic factors in an ecosystem. Key concepts include differences between ecosystems and biomes; characteristics of land, marine, and freshwater ecosystems; and adaptations that enable organisms to survive within a specific ecosystem. Essential Understandings Essential Knowledge, Skills, and Processes The concepts developed in this standard include the following: The living organisms within a specific area and their physical environment define an ecosystem. Characteristics of land, marine, and freshwater ecosystems vary with respect to biotic and abiotic factors. The major terrestrial ecosystems are classified into units called biomes — large regions characterized by certain conditions, including a range of climate and ecological communities adapted to those conditions. Organisms have specific structures, functions, and behaviors that enable them to survive the biotic and abiotic conditions of the particular ecosystem in which they live. Organisms possess adaptations to both biotic and abiotic factors in their ecosystem that increase their chance of survival. In order to meet this standard, it is expected that students will differentiate between ecosystems and biomes. recognize and give examples of major biomes: desert, forest, grassland, and tundra. compare and contrast the biotic and abiotic characteristics of land, marine, and freshwater ecosystems. analyze and describe how specific adaptations enable organisms to survive in a particular ecosystem. design an investigation from a testable question related to how specific adaptations of organisms allow them to survive in the presence of the biotic and abiotic factors in an ecosystem. The investigation may be a complete experimental design or may focus on systematic observation, description, measurement, and/or data collection and analysis.