Humans, crocodiles, bats, whales, and birds have similar limb bones. What do these similarities suggest?

A.

Humans, bats, and crocodiles share an ancestor with whales but not with birds.

B.

Humans, crocodiles, bats, whales, and birds evolved from a common ancestor.

C. A similar limb structure evolved in each species independently and by chance.

D.

The common ancestor of a human and a bird was a whale.

Question

Biology

Lane Arnold

9 June, 16:27

Humans, crocodiles, bats, whales, and birds have similar limb bones. What do these similarities suggest?

A.

Humans, bats, and crocodiles share an ancestor with whales but not with birds.

B.

Humans, crocodiles, bats, whales, and birds evolved from a common ancestor.

C. A similar limb structure evolved in each species independently and by chance.

D.

The common ancestor of a human and a bird was a whale.

+4

Answers (2)

Know the Answer?

Mckenna Dean · Answer 1

B, because all have similarities, not just some

Anton Garner · Answer 2

The correct answer is B.

Humans, crocodiles, bats, whales, and birds evolved from a common ancestor.

Explanation:

I just took the test so that is how I know, also if you look at all their structures they are similar and diffrent but they are diffrent because there bodies had to adapt to the food and place they were living in.