Question

Which among the following organisms might have a common ancestor?

• A. A and B
• B. A and C
• C. B and C
• D. A, B and C have a common ancestor

Answer 1

The correct option is A

A and B

Bat (A) and bird (B) might have a common ancestor because the structure of bones and joints in their wings are similar. Such similarity indicates that these organisms might have a common ancestor. Whereas the insect's wings (C) do not have any bones. So, it does not share common ancestry with bats and birds.