what have a circulatory system with one or two hearts that pump blood
a fish aorta bacteria animals clams plants sharks Birds
A B C D E F G H
Clams are mollusks that live in the sea or in freshwater.
clams have a circulatory system with one or two hearts that pump blood
what have a circulatory system with one or two hearts that pump blood (A) a fish (B) aorta (C) bacteria (D) animals (E) clams (F) plants (G) sharks (H) Birds