A) is the only important evolutionary process.
B) rarely occurs without geographic separation of populations.
C) is the main means by which new species arise.
D) cannot account for the proliferation of species.
Correct Answer: D
Solution :
[d] Anagenesis, or phyletic evolution, is the accumulation of changes associated with the transformation of one species into another while cladogenesis or branching evolution involves the building of one or more new species from a parent species that continues to exist. Only cladogenesis can promote biological diversity by increasing the number of species.
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