Answer to Question #349547 in Zoology for Jannat

Question

Why is a double citriv heart in animals better than asingle cotriv heart

Answer 1

Double circulatory systems are important because they ensure that we are giving our tissues and muscles blood full of oxygen, instead of a mixture of oxygenated and deoxygenated blood. While it may take a bit more energy than a single circulatory system, this system is much more efficient!