A Heart with Three Chambers,one Atrium,and Two Ventricles is Shared

Question

A heart with three chambers,one atrium,and two ventricles is shared by _____.  
A) reptiles and mammals
B) reptiles and amphibians
C) amphibians and mammals
D) birds and mammals
E) birds and reptiles

Accepted Answer

Amphibians typically have a three-chambered heart with one atrium and two ventricles, while reptiles can also have a similar heart structure, although some reptiles have a partially divided ventricle.