Ecology and Energy Transfer

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Producers

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Organisms that make their own food using sunlight or chemical energy; also called autotrophs.

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Consumers

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Organisms that obtain energy by eating other organisms.

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Autotrophs

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Organisms that produce their own food from inorganic compounds (like sunlight or chemicals).

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Heterotrophs

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Organisms that must consume other organisms for energy and nutrients.

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Carnivore

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A consumer that eats only animals.

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Omnivore

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A consumer that eats both plants and animals.

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Herbivore

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A consumer that eats only plants.

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Detritivore

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An organism that feeds on plant and animal remains and other dead matter.

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Food Chain

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A sequence showing how energy is transferred by organisms eating and being eaten.

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Food Web

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A network of complex feeding interactions among organisms in an ecosystem.