The advantage of the double-loop circulatory pathway of some vertebrates over the single-loop circulatory pathway of fish is that A) the blood is put back under pressure after picking up oxygen in the respiratory organ. B) all the O ₂-rich blood is pumped to the systemic arteries of the body. C) the O ₂-rich blood and O ₂-poor blood mixes in the single ventricle. D) the ventricle acts as a strong pump. E) the atria act as receiving chambers.

Question

Quizplus · Accepted Answer

In a double-loop circulatory system, blood is re-pressurized after picking up oxygen in the lungs, allowing for more efficient delivery of oxygenated blood to the body.

The Advantage of the Double-Loop Circulatory Pathway of Some Vertebrates