Food Webs/Energy Pyramids

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What is a food web?

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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 a food chain?

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A food chain is a linear sequence that shows how energy and nutrients are transferred from one organism to another, starting from producers to various levels of consumers.

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What are producers?

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Producers are organisms, like plants and algae, that create their own food through photosynthesis and form the base of the food web.

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What are primary consumers?

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Primary consumers are herbivores that eat producers. They are the second trophic level in a food web.

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What are secondary consumers?

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Secondary consumers are organisms that eat primary consumers. They are typically carnivores or omnivores.

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What are tertiary consumers?

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Tertiary consumers are predators that eat secondary consumers. They are at the top of the food chain.

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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 each trophic level in an ecosystem, illustrating that energy decreases as it moves up the pyramid.

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What is a pyramid of numbers?

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A pyramid of numbers is a diagram that represents the number of individual organisms at each trophic level in an ecosystem.

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How much 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.

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What is a trophic level?

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