The pattern of circulation in a submerged crocodile is most like the pattern of circulation in a
A) shark.
B) goanna.
C) human fetus.
D) diving seal.
E) frog.

Question

Quizplus · Accepted Answer

The pattern of circulation in a submerged crocodile is most like that in a human fetus because both have a specialized circulatory system that allows for efficient gas exchange and nutrient delivery in environments where direct breathing is not possible. In the case of the human fetus, this system includes structures like the ductus arteriosus and foramen ovale, which bypass the lungs, directing blood flow from the placenta throughout the body. Similarly, crocodiles have a unique cardiovascular mechanism that allows them to shunt blood away from the lungs while submerged, optimizing oxygen usage.

The Pattern of Circulation in a Submerged Crocodile Is Most