1
Q:
A) Pisces and Amphibia | B) Amphibia and Reptilia |
C) Reptilia only | D) Amphibia only |
Answer: B) Amphibia and Reptilia
Explanation:
Explanation:
Mammalian and avian hearts have four chambers two atria and two ventricles.Amphibians and reptiles, by contrast, have a three-chambered heart. The three-chambered heart consists of two atria and one ventricle.Fish possess the simplest type of true heart a two-chambered organ composed of one atrium and one ventricle.