Food Chains and Food webs

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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 flow from one organism to another in an ecosystem, starting from producers to various levels of consumers.

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What is a food web?

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

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Who are producers in a food chain?

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Producers are organisms, usually plants, that create their own food through photosynthesis and serve as the base of the food chain.

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NGSS.MS-LS1-6

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What are primary consumers?

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Primary consumers are herbivores that eat producers (plants) and are the second level in a food chain.

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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-LS2-2

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What are tertiary consumers?

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

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NGSS.MS-LS2-3

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What role do decomposers play in an ecosystem?

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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 energy transfer in a food chain?

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Energy transfer in a food chain decreases at each trophic level, with producers receiving the most energy and tertiary consumers receiving the least.

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NGSS.MS-LS2-3

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What is the significance of biodiversity in food webs?

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Biodiversity in food webs increases ecosystem stability and resilience, allowing it to better withstand changes and disturbances.

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How do food chains and food webs relate to ecosystems?

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Food chains and food webs are essential components of ecosystems, illustrating the flow of energy and nutrients among organisms.

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NGSS.MS-LS2-2

NGSS.MS-LS2-3