If fossil evidence of the most recent common ancestor of A and B (10 million years ago) was found on both sides of the river (that formed 20 million years ago), then the distribution of A and B is best explained by vicariance. ( choose true or false) 2- It is possible that species C will speciate. ( choose true or false) 3- The distribution of the two species-C populations cannot be explained by two totally independent dispersal events by the common ancestor species of A and B. ( choose true or false) 4- B must share a more recent common ancestor with C1 than it does with C2. (choose true or false)
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1- If fossil evidence of the most recent common ancestor of A and B (10 million years ago) was found on both sides of the river (that formed 20 million years ago), then the distribution of A and B is best explained by vicariance. ( choose true or false)
2- It is possible that species C will
3- The distribution of the two species-C populations cannot be explained by two totally independent dispersal events by the common ancestor species of A and B. ( choose true or false)
4- B must share a more recent common ancestor with C1 than it does with C2. (choose true or false)
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