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Biology 150 Ch. 27

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QuestionAnswer
Biotic Living
Competitive Exclusion Principle If a researcher forces two species with the same niche to compete for limited resources one will outcompete the other and the lesser of the two will die out.
Resource Partitioning Evolutionary adaptation that reduces interspecific competition.
Mimicry A situation in which members of one species have evolved to resemble another species.
Mutualism Interactions between species in which both benefit.
Keystone Species A species that regulates and ultimately plays a key role in determining the community structure.
Succession A structural change in a community and its nonliving environment over time.
Abiotic Nonliving.
Climax Community If succession succeeds, it results in a climax community.
Subclimax A community with continuous disturbances and succession.
Primary Succession A community gradually forms where there is no trace of a previous community.
Secondary Succession A new community develops after an existing ecosystem is disturbed in a way that leaves significant remnants of the previous community behind such as soil and seeds.
Biomes Extensive areas of characteristic climax plant communities.
Created by: khlozer
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