The classification system tells something about the evolutionary relationships among species. Moving down through each level of classification, the number of species in the group decreases. Two species within the same genus likely share a recent common ancestor in their evolutionary history.
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Answer:
The classification system tells something about the evolutionary relationships among species. Moving down through each level of classification, the number of species in the group decreases. Two species within the same genus likely share a recent common ancestor in their evolutionary history.