A species occurs in a given place and time because members of this species (or its ancestors) evolved in this location or dispersed to it at some point in the past.For example, Antarctica has fewer species than a temperate deciduous forest, which in turn has fewer species a tropical rainforest.
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Answer:
A species occurs in a given place and time because members of this species (or its ancestors) evolved in this location or dispersed to it at some point in the past.For example, Antarctica has fewer species than a temperate deciduous forest, which in turn has fewer species a tropical rainforest.