Answer to Question #168335 in Human Anatomy and Physiology for sam

Question #168335

why do mammals have a double circulatory system


1
Expert's answer
2021-03-03T03:33:18-0500

Double circulatory system allow for higher metabolic rates to be maintained as there is no mixing of oxygenated and deoxygenated blood. This means that blood leaving the heart to travel to the body is rich in oxygen. This is essential for the high-energy demands of mammals.


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