Food Chain and Ecosystem Concepts

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Diagram of a food chain

Back

A food chain diagram illustrating the roles of solar energy, producers, and consumers.

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Sunlight

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Source of energy needed for a food chain.

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Producer

Back

An organism that takes sunlight and produces food for other organisms in a food chain. Includes green plants and certain bacteria.

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Consumer

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An organism, usually an animal, that feeds on plants and other animals.

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Decomposer

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An organism, usually a bacterium or fungus, that recycles matter into an ecosystem.

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Examples of Producers

Back

Green plants and certain bacteria.

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Function of Consumers

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Feed on plants and other animals to obtain energy.

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Function of Decomposers

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Recycle matter into an ecosystem, similar to how people recycle items.

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Importance of Decomposers

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Help in breaking down dead material and recycling nutrients.

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Energy Flow in a Food Chain

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Begins with sunlight, moves to producers, then to consumers.