题目内容
Places where many species reach the edges of their distributions is called ( )
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A species that has a disproportionate不成比例impact on the community relative to its abundance is called ( )
Relative abundance means counting all individuals of each species in a number of sample plots within a community and determining what percentage each contributes to the total number of individual of all species.
Species richness means number of species within the community.
Energy flow web means connections between species are quantified by the flux of energy between a resource and its consumer.
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