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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NGSS.MS-LS2-2

NGSS.MS-LS2-3

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What is a food chain?

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A food chain is a linear sequence of organisms through which nutrients and energy pass as one organism eats another.

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NGSS.MS-LS2-3

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What are producers?

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Producers are organisms, such as plants and algae, that can make their own food through photosynthesis and are the first trophic level in a food chain.

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NGSS.MS-LS1-6

NGSS.MS-LS2-3

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What are primary consumers?

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Primary consumers are organisms that eat producers; they are typically herbivores that feed on plants.

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What are secondary consumers?

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Secondary consumers are organisms that eat primary consumers; they can be carnivores or omnivores.

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NGSS.MS-LS2-3

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What are tertiary consumers?

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Tertiary consumers are organisms that eat secondary consumers; they are often top predators in a 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 different trophic levels in an ecosystem, illustrating how energy decreases as it moves up the pyramid.

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NGSS.MS-LS1-6

NGSS.MS-LS2-3

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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 making them available for producers.

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NGSS.MS-LS2-3

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

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A food chain shows a single pathway of energy flow, while a food web illustrates multiple interconnected food chains in an ecosystem.

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NGSS.MS-LS2-3

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What is a trophic level?

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A trophic level is a position in a food chain or food web, defined by how an organism obtains its energy.

Tags

NGSS.MS-LS2-3