7) Below is a diagram indicating the limb bones of a human, a crocodile, a bat, a whale, and a bird. Similar bones are highlighted in the same colors. Humans, crocodiles, bats, whales, and birds have similar limb bones. What do these similarities suggest?

Question

7) Below is a diagram indicating the limb bones of a human, a crocodile, a bat, a whale, and a bird. Similar bones are highlighted in the same colors. Humans, crocodiles, bats, whales, and birds have similar limb bones. What do these similarities suggest?

Humans, crocodiles, bats, whales, and birds evolved from a common ancestor.
) Humans, bats, and crocodiles share an ancestor with whales but not with birds A similar limb structure evolved in each species independently and by chance.
The common ancestor of a human and a bird was a whale.
• Humans, bats, and crocodiles share an ancestor with whales but not with birds.
• A similar limb structure evolved in each species independently and by chance.
•The common ancestor of a human and a bird was a whale

Answer 1

The similarities in limb bones among humans, crocodiles, bats, whales, and birds suggest that these species evolved from a common ancestor. This is known as homology, where similar structures in different species are inherited from a common ancestor. Therefore, the common ancestor of these species likely had a similar limb structure, which was passed down and modified through the process of evolution to suit the specific needs of each species. The other statements provided do not accurately reflect the evidence of common ancestry seen in the limb bones of these species.