What is the correct answer and why are the rest wrong? 6) Structures as differen

Question

What is the correct answer and why are the rest wrong? 6) Structures as different as human arms, bat wings, and dolphin flippers contain many of the same bones, these bones having developed from very similar embryonic tissues. How do biologists interpret these similarities? by proposing that humans, bats, and dolphins share a common ancestor )by identifying the bones as being homologous structures C) by the principle of convergent evolution D Three of the statements above are correct. E) Two of the statements above are correct

Explanation / Answer

These similarities indicate that the structures have arisen from a common ancestor, they are different only because the individuals have adapted to various habitats or the structures serve the needed functional roles. This is an example of divergent evolution where same bone appears in diverse forms because although they have the same ancestor they have developed differently because of different environments they took shelter in.different conditions of living. Convergent evolution, on the other hand, occurs when two species not related by ancestry independently develop similar structures as an adaptation to environment

Hence only A and B are correct, SO the answer shall be E) two of the statements are correct

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