Question

What is meant by double circulation? What is its significance?

Answer 1

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Significance of double circulation: The separation of oxygenated and deoxygenated blood allows a more efficient supply of oxygen to the body cells. Blood is circulated to the body tissues through systemic circulationand to the lungs through pulmonarycirculation.

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Answer 2

Answer:

Double circulation is a system of blood circulation adopted by many mammals including humans in which blood passes through the heart two times via two routes, one of which is oxygenated while the other is deoxygenated. The two different routes include the systemic circulation and the pulmonary circulation.

This system ensures a proper and efficient supply of blood to the heart as the oxygenated and deoxygenated blood are well separated that further improves body efficiency. This also helps animals to maintain the temperature of their bodies.