Question

Humans and monkeys share a close evolutionary relationship. Monkeys have tails, which help them balance. Humans have tailbones but no tails. What are the likely explanations for this situation? Monkeys and humans share a common ancestor. The tailbone became vestigial, and the tail disappeared because humans could balance on two legs. Grabbing things with their tails became difficult for humans, so their tails disappeared. Monkeys rely on their tails more than humans, so monkeys have tails while humans don’t. Monkeys and humans don’t share a common ancestor.

Answer 1

Answer:

Monkeys and humans share a common ancestor.

The tailbone became vestigial, and the tail disappeared because humans could balance on two legs.

Monkeys rely on their tails more than humans, so monkeys have tails while humans do not.

Explanation:

Human beings do not have tails while monkeys do due to Adaptation

Adaptation is the biological system in the process of evolution which allows organisms to shed any form to adjust to a new environment or modifications in their current environment.

Humans have a tail but only for a while during gestation. It is most visible between the 31st to 35th period of gestation. Thereafter, it diminishes into what becomes our coccyx.

Answer 2

Answer:

Monkeys and humans share a common ancestor. The tailbone became vestigial, and the tail disappeared because humans could balance on two legs. Monkeys rely on their tails more than humans, so monkeys have tails while humans do not.

Explanation: