Ectothermic reptiles
A) have continuously high metabolic demands.
B) have a partially divided atrium.
C) can shunt blood past the lungs when not breathing.
D) constrict pulmonary vessels when breathing.
E) have greater resistance in the pulmonary circuit than in the systemic circuit when breathing.

Question

Quizplus · Accepted Answer

Ectothermic reptiles have the ability to shunt blood past the lungs when they are not breathing to conserve energy. This is done through a bypass system called the systemic arterial-venous shunt.

Ectothermic Reptiles