Food Webs

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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 shows how energy and nutrients flow through an ecosystem.

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

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A food chain shows a linear sequence of energy transfer between organisms, while a food web illustrates the multiple feeding relationships and energy flow among various organisms in an ecosystem.

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What role do producers play in a food web?

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

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What are primary consumers?

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

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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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What is a tertiary consumer?

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Tertiary consumers are organisms that eat secondary consumers; they are often top predators in a food web.

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What is an invasive species?

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An invasive species is a non-native organism that disrupts the ecosystem by outcompeting native species for resources.

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How do invasive species affect food webs?

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Invasive species can deplete native populations, increase competition, and disrupt natural biological processes, leading to instability in food webs.

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What is an energy pyramid?

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An energy pyramid is a graphical representation that shows the amount of energy available at each trophic level in a food web.

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What happens to energy as it moves up the food chain?

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As energy moves up the food chain, it decreases due to energy loss through metabolic processes, heat, and waste.