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What is a food web?

Back

A food web is a complex network of feeding relationships among various organisms in an ecosystem, showing how energy and nutrients flow through different trophic levels.

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What is an energy pyramid?

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An energy pyramid is a graphical representation that shows the flow of energy at different trophic levels in an ecosystem, illustrating how energy decreases as it moves up the pyramid.

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What is a trophic level?

Back

A trophic level is a position in a food chain or food web that indicates the organism's role in the flow of energy and nutrients, such as producers, primary consumers, and secondary consumers.

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What percentage of energy is typically transferred from one trophic level to the next?

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Typically, only about 10% of the energy is transferred from one trophic level to the next, with the rest lost as heat or used for metabolic processes.

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What are primary consumers?

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Primary consumers are organisms that eat producers (plants) and are the second trophic level in a food web.

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What are producers?

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Producers are organisms, usually plants or algae, that create their own food through photosynthesis and form the base of the energy pyramid.

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What happens to energy as it moves up the energy pyramid?

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As energy moves up the energy pyramid, it decreases, resulting in fewer organisms at higher trophic levels.

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What is the role of decomposers in a food web?

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Decomposers break down dead organic matter, returning nutrients to the soil and completing the nutrient cycle in an ecosystem.

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How does energy flow in a food web?

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Energy flows in a food web from producers to primary consumers, then to secondary consumers, and so on, with each level receiving less energy than the one below.

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What is a secondary consumer?

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A secondary consumer is an organism that eats primary consumers and is typically a carnivore or omnivore.