Question

Based on Slides 11-13, how does the presence of only one ventricle in the frog’s heart affect its circulatory system?(1 point)
Responses

It allows for complete separation of oxygenated and deoxygenated blood.
It allows for complete separation of oxygenated and deoxygenated blood.

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.
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.

It prevents blood from being pumped to the lungs.
It prevents blood from being pumped to the lungs.

It enhances the efficiency of oxygenation compared to the human heart.

1 answer

The correct response is:

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 has one ventricle, which leads to the mixing of oxygen-rich and oxygen-poor blood. This can reduce the efficiency of oxygen transport compared to organisms with separate chambers for oxygenated and deoxygenated blood.