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Biodiversity
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Food Chain and Trophic Levels
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Age 11-15
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level: GRADE 8
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English
Author's Instructions
Energy flows from the sun to autotrophs, such as corn plants, and heterotrophs, such as chickens and lizards. Autotrophs get energy from the sun to produce food molecules; hence, they are the producers. Dependent species cannot make their own food and are called heterotrophs or consumers, which obtain energy by eating or consuming plants and animals. The kinds of organisms in an ecosystem determine the flow of energy.
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Biodiversity
-
Food Chain and Trophic Levels
-
Age 11-15
-
level: GRADE 8
-
English
Author's Instructions
Energy flows from the sun to autotrophs, such as corn plants, and heterotrophs, such as chickens and lizards. Autotrophs get energy from the sun to produce food molecules; hence, they are the producers. Dependent species cannot make their own food and are called heterotrophs or consumers, which obtain energy by eating or consuming plants and animals. The kinds of organisms in an ecosystem determine the flow of energy.