Mollusks have a circulatory system with one or two hearts that pump blood.
Interestingly, a squid is also a mollusk.
Squid have a circulatory system with one or two hearts that pump blood.
An animal which may have one or two hearts to pump blood is:
A. squid
B. goats
C. bats
D. mammals
E. toads
F. Birds
G. edible
H. a fish