Based on Slides 11-13, how does the presence of only one ventricle in the frog’s heart affect its circulatory system?

Question

a
It causes mixing of oxygenated (blood with oxygen in it) and deoxygenated blood (blood without oxygen in it), making it harder for the body to get the oxygen it needs.
b
It prevents blood from being pumped to the lungs.
c
It allows for complete separation of oxygenated and deoxygenated blood.

Answer 1

The correct answer is:

a. It causes mixing of oxygenated (blood with oxygen in it) and deoxygenated blood (blood without oxygen in it), making it harder for the body to get the oxygen it needs.

In a frog's heart, which has only one ventricle, oxygenated and deoxygenated blood can mix, resulting in less efficient oxygen delivery to the body compared to a circulatory system with separate ventricles (as in mammals).