Question

use the following cladogram to answer the questions below.
sharks ray - finned fish amphibians primates rodents & rabbits crocodiles birds
hair eggs with shell:
amniotic egg
four limbs
bony skeleton
vertebrae

1. what separates rabbits/primate from the crocodiles on this cladogram?

Explanation:

To determine what separates rabbits/primates from crocodiles, we analyze the cladogram. Rabbits (Rodents & rabbits) and primates share the "Hair" trait, while crocodiles do not have hair (they have eggs with shells and other traits, but hair is unique to the mammalian group here). The cladogram shows that the branch for primates and rodents/rabbits has the "Hair" characteristic, which crocodiles (and birds) do not possess. So the trait "Hair" is the key feature that separates them.

Answer:

The trait "Hair" separates rabbits/primates from crocodiles on this cladogram.