Ecosystems

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Parasitism

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One species benefits and the other is harmed.

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Non-living parts of an ecosystem are called...

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abiotic factors.

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What percentage of energy is passed from one trophic level to the next trophic level?

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Only about 10% of the energy at one level is passed to the next.

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Living parts of an ecosystem are called...

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biotic factors.

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All organisms of a species that live in the same place at the same time is called...

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population.

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What is an ecosystem?

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A community of living organisms interacting with their non-living environment.

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What are biotic factors?

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The living components of an ecosystem, such as plants, animals, and microorganisms.

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What are abiotic factors?

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The non-living components of an ecosystem, such as water, soil, and climate.

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What is a food chain?

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

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What is a food web?

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A complex network of feeding relationships among various organisms in an ecosystem.