NWEA Science /Organisms and Environments /

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What is a food web?

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A food web is a system of interconnected food chains that shows how energy and nutrients flow through an ecosystem.

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What are producers in an ecosystem?

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Producers are organisms, like plants, that create their own food through photosynthesis and provide energy for other organisms.

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What are consumers in an ecosystem?

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Consumers are organisms that eat other organisms for energy. They can be herbivores, carnivores, or omnivores.

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What are decomposers?

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Decomposers are organisms, like fungi and bacteria, that break down dead organic material, returning nutrients to the soil.

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What is an apex predator?

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An apex predator is a predator at the top of the food chain that has no natural enemies.

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How does energy transfer in a food web?

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Energy transfers from producers to consumers and then to decomposers, with each level representing a different trophic level.

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What happens if all producers are removed from an ecosystem?

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If all producers are removed, the entire ecosystem can collapse as consumers lose their food source.

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What role do herbivores play in a food web?

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Herbivores are primary consumers that eat plants and transfer energy from producers to higher trophic levels.

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

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A food chain is a linear sequence of organisms where each is eaten by the next, while a food web is a complex network of many food chains.

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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, representing the flow of energy from producers to various levels of consumers.