APES Unit 1 review

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Biotic factors

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The living factors in an environment.

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Gross Primary Productivity (GPP)

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The total amount of energy a plant produces excluding respiration loss (before taxes).

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Control group

Back

The group that is not exposed to any change in an experiment.

Front

Abiotic factors

Back

The non-living factors in an environment.

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Resource partitioning

Back

How species allocate resources in different ways to reduce competition.

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Niche

Back

The role or function of an organism or species within an ecosystem.

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Carrying capacity

Back

The maximum number of individuals of a species that an environment can support sustainably.

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Trophic levels

Back

The hierarchical levels in an ecosystem, comprising producers, primary consumers, secondary consumers, and so on.

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Ecosystem services

Back

The benefits that humans derive from ecosystems, such as clean water, pollination, and climate regulation.

Front

Biomagnification

Back

The process by which the concentration of toxins increases in organisms at each successive level of the food chain.