Food Chains and Food Webs

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What is a Heterotroph?

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An organism that eats other organisms to gain energy.

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What is an Autotroph?

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An organism that can convert sunlight into chemical energy (glucose).

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What is the role of a Producer in a food chain?

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Producers use sunlight to make food through photosynthesis.

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What is the role of Consumers in a food chain?

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Consumers eat other species and help keep populations in balance.

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What is a Food Chain?

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A linear sequence of organisms where each is eaten by the next one in the chain.

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What is a Food Web?

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A complex network of interconnected food chains in an ecosystem.

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What are Primary Consumers?

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Organisms that eat producers; they are usually herbivores.

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What are Secondary Consumers?

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Organisms that eat primary consumers; they can be carnivores or omnivores.

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What is a Trophic Level?

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Each step in a food chain or food web, representing a different level of energy transfer.

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What is Biomass?

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The total mass of living matter in a given area, often used to measure energy in an ecosystem.