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

Why are small quantities of chlorofluorocarbons so harmful to the ozone layer? a. the chlorofluorocarbons act like ultraviolet radiation causing large amount of ozone to be produced. b. the chlorine from the chlorofluorocarbons reacts with free molecules of oxygen causing a stop in ozone production c. free oxygen atoms can replace the chlorine in chlorine monoxide, releasing a free atom of chlorine which can then recombine with an oxygen atom in ozone, destroying more ozone. d. chlorofluorocarbons absorb ultraviolet radiation, preventing the formation of ozone select the best answer from the choices provided

What is the relation ship between structure and function in an organism

What is the name of the two satelites on mars