N5 3.4 Energy in Ecosystems

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Producer

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An organism which produces its own food.

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Consumer

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An organism which consumes other organisms for food.

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Food Chain

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A diagram which shows a simple feeding relationship between organisms.

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Food Web

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A diagram which shows the interconnection of food chains.

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Biomass

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The mass of living material.

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Pyramid of Energy

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A diagram that shows the relative quantities of energy at each stage in a food chain.

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Pyramid of Numbers

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A diagram that shows the relative numbers of organisms at each stage in a food chain.