Regular Review 2024 Fall Final

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Abiotic factor

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Non-living factor that influences an ecosystem.

Answer explanation

An abiotic factor refers to a non-living element that affects an ecosystem, such as temperature, water, and sunlight. This distinguishes it from biotic factors, which involve living organisms.

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Biotic factor

Back

Living factor that influences an ecosystem.

Answer explanation

A biotic factor refers to any living component that affects an ecosystem, such as plants, animals, and microorganisms. This distinguishes it from abiotic factors, which are non-living elements like climate and soil.

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Apex predator is a

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Top predator in a food chain or food web.

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Artificial selection

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Selective breeding of organisms by humans for desired traits. Such as dogs, or cows

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Natural selection

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Organisms with favorable traits survive and reproduce.

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Homologous structures

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Structures that have a common evolutionary origin but may have different functions.

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Vestigial structure

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Structure that has lost its original function in the course of evolution.

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Fitness

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Ability of an organism to survive and reproduce in its environment.

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Invasive species

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Non-native species that spreads and causes harm to the ecosystem.

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Keystone species

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Species that has a HUGE impact on its ecosystem. More impact than others.