Biology

The correct answer is: A. Sharks.

1. Analyze the relatedness in the cladogram:

In a cladogram, the greater the number of branch points between two organisms, the more their DNA is likely to differ. This is because each branch point represents a divergence in evolution, where genetic changes occur over time.

Sharks: Sharks are at a greater evolutionary distance from birds. Sharks are only vertebrates. They lack a bony skeleton (unlike the trait present in the lineage leading to birds), four limbs, amniotic eggs, and eggs with shells. There are more branch points between sharks and birds compared to the other options.

Rodents: ...