[Answer] Cardueline finches can be found in many areas of the world including North America and Asia. Hawaiian honeycreepers which are found only in Hawaii have been found to have DNA commonalities with this group of finches that indicate they have a common ancestor. Which mechanism might have led to the appearance of the Hawaiian honeycreeper?

Answer: c geographical isolation
Cardueline finches can be found in many areas of the world including North America and Asia. Hawaiian honeycreepers which are found only in Hawaii have been found to have…

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