What animals have two chambered hearts?

Answer 1

Fish hearts have two chambers, one atrium and one ventricle. They draw in deoxygenated blood in a single atrium, and pump it out through a ventricle.

Answer 2

All mammals,crocodile,all types of birds possess a four chambered heart.

Answer 3

all animals of phylum mammalia have a fourchambered heart except crocodile whiuch has four chanbered heart inspite of being a reptile ,since reptiles have a3 chambered heart

Answer 4

Mammals, birds, and crocodilians have four-chambered hearts.

Answer 5

birds , mammals , and crocodile are the only groups of animals having four chambered heart

Answer 6

fish

Answer 7

Salmon