2) Let's take the second model and add some information Scientists have
used fossil evidence and radiometric dating to predict the time frame
for the evolution of the animals within our model.
Based on this new information, what prediction can we make about
the animals represented here? MYA refers to millions of years ago.

the cladogram shown here shows similarities and differences among several classes of vertebrates. anatomically, the four have limb structure as their common ancestor. we might separate the mammals from the other three classes because they a) divergent; do not lay eggs b) identical; are warm-blooded c) varied; a four chambered heart d) homologous; have mammary glands

i think it’s c but i might be wrong. if i am let me know! have a good rest of your day as well!