Ecosystems: Food Chains, Webs, & Energy Pyramids

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What is a Decomposer?

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Organisms that break down dead or decaying organisms, returning nutrients to the ecosystem.

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Why do so many arrows lead back to detritus in a food web?

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Because everything eventually dies.

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How do producers obtain energy?

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They conduct photosynthesis.

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What are Biotic factors?

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Biotic factors are living organisms or were once living.

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What is a Trophic level?

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The feeding position in a food chain, food web, or energy pyramid.

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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 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 role do Herbivores play in an ecosystem?

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Herbivores are primary consumers that eat plants.

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What is Photosynthesis?

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The process by which plants use sunlight to convert carbon dioxide and water into glucose.

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What is an Energy Pyramid?

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A graphical representation showing the flow of energy at different trophic levels in an ecosystem.