Question

double circulation is an efficient way of blood circulation in why​

Answer 1

Double Circulation does not mix the oxygenated and de-oxygented bloods of an organism, therefore supplying greater quantities of oxygen to the entire body, increasing the rate of respiration to liberate energy.

Double Circulation is usually found in organisms with higher energy requirements such as mammals, birds and other animals.

Answer 2

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Double circulation is the most efficient way of circulation. Here, in humans, the four-chambered heart, oxygen, veins, and capillaries all have a vital role to play. Blood gets pumped out of the heart. Exchange of oxygen and carbon dioxide takes place in the lungs and the blood is now oxygenated (with oxygen).

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