Food Chain, Food Web and Ecological Pyramid

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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 in an ecosystem, illustrating how different organisms are related through feeding relationships.

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What are producers in an ecological pyramid?

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Producers are organisms, such as plants and algae, that create their own food through photosynthesis and form the base of the ecological pyramid.

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What are primary consumers?

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Primary consumers are herbivores that eat plants and are the second level in the ecological pyramid.

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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 an apex predator?

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An apex predator is a top-level predator with no natural enemies, which typically has the least amount of energy available in an ecological pyramid.

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How does energy transfer in a food chain?

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Energy transfer in a food chain occurs when one organism is consumed by another, with only about 10% of the energy being passed on to the next level.

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What is the role of decomposers in an ecosystem?

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Decomposers break down dead organic matter, returning nutrients to the soil and completing the nutrient cycle.

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What is the difference between herbivores and carnivores?

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Herbivores are animals that eat only plants, while carnivores are animals that eat other animals.

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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.