The reptile heart is distinguished from the amphibian heart by the presence of
A)two separate atriA.
B)systemic and pulmonary circulation.
C)cutaneous respiration.
D)a partially divided ventricle.
E)two separate ventricles.

Question

Quizplus · Accepted Answer

The reptile heart is distinguished from the amphibian heart by having a partially divided ventricle. This incomplete separation allows for a mixing of oxygenated and deoxygenated blood, but to a lesser extent than in amphibians with completely undivided ventricles. This adaptation allows reptiles to function better in terrestrial environments where there is less access to water for cutaneous respiration.

The Reptile Heart Is Distinguished from the Amphibian Heart by the Presence