Food Chains Food Webs Food Pyramids Review

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What is a food chain?

Back

A food chain is a linear sequence that shows how energy and nutrients flow from one organism to another in an ecosystem, illustrating who eats whom.

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What is a food web?

Back

A food web is a complex network of interconnected food chains in an ecosystem, showing how different organisms are related through feeding relationships.

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What is a primary consumer?

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A primary consumer is an organism that eats producers (plants) to obtain energy, typically herbivores.

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What is a secondary consumer?

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A secondary consumer is an organism that eats primary consumers, often carnivores or omnivores.

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What is a tertiary consumer?

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A tertiary consumer is an organism that eats secondary consumers, usually at the top of the food chain.

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What role do producers play in a food chain?

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Producers, such as plants, convert sunlight into energy through photosynthesis, forming the base of the food chain.

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Where does the energy in a food chain originate?

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The energy in a food chain originates from the Sun, which is captured by producers.

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What is a food pyramid?

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A food pyramid is a graphical representation that shows the energy flow and the relative amount of energy available at each trophic level in an ecosystem.

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What is the significance of decomposers in a food web?

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Decomposers break down dead organic matter, recycling nutrients back into the ecosystem and supporting the growth of producers.

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What is the difference between a food chain and a food web?

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A food chain is a simple, linear pathway of energy flow, while a food web is a complex network of multiple food chains.