Biology

The correct answer is: B. even number of toes.

1. Analyze the characteristics based on the phylogenetic tree:

A.Un - branching horns (in males): The phylogenetic tree does not provide any information indicating that zebras have un - branching horns in males, and giraffes do not have un - branching horns either. So this option is incorrect.

B.Even number of toes: According to the tree, zebras are in the group of odd - toed ungulates, while giraffes are in the group of even - toed ungulates. This is a key difference betwe...