Ostriches are a large flightless African bird with solid bones and very powerful hindlegs for running and kicking. Rheas are from South America. Other than the fact that they are about half the size of an ostrich, their physical features are almost identical to ostriches. Which conclusion is NOT supported by the observations concerning ostriches and rheas?

A) Ostriches and rheas are probably close relatives, since their features are very similar.

B) Ostriches and rheas may have evolved from a common ancestor, since they have so many similar features.

C) The similarity of ostriches and rheas suggests that Africa and South America may have been joined at one time.

D) Ostriches and rheas started off as different species, but have evolved over time to become identical to each other.

Question

Christine

15 April, 00:15

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Matthew Palmer · Answer 1

D) Ostriches and rheas started off as different species, but have evolved over time to become identical to each other.