Based on slides 11-13, how does the presence of only one ventricle in the frogs heart affect its circulatory system.

A. It allows for complete separation of oxygenated and deoxygenated blood.
B. 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.
C. It prevents blood from being pumped into the lungs.
D. It enhances the efficiency of oxygenation compared to the human heart.

1 answer

The correct answer is B. 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 frogs, the heart consists of one ventricle, which leads to mixing of oxygen-rich and oxygen-poor blood, leading to reduced efficiency in oxygen delivery to the body's tissues.