An animal that has a four-chambered heart, is endothermic (warm-blooded), and does not give birth to live offspring can be classified as a(n) :
a. mammal.
b. bird.
c. reptile.
d. amphibian.
An animal that has a four-chambered heart, is endothermic (warm-blooded), and does not give birth to live offspring can be classified as a(n): Oa.mammal. Ob.bird. Oc.reptile. Od.amphibian.