17. which statement can be inferred from the cladogram above?
A. Sharks are most closely related to birds
B. Crocodiles are most closely related to birds.
C. Crocodiles are mostly related to rodents.
18. Using the cladogram from above. What is the characteristic separating the sharks from the ray-finned fishes?
A. Vertebrae
B. Bony Skeleton
C. Four legs
D. Amniotic egg