Question

What is double - circulation ? List the benefits.​

Answer 1

Double circulation in human beings allows the separation of oxygenated and deoxygenated blood in the body. It helps in maintaining a high blood pressure required for essential processes. It enables pure blood to reach the different tissues and organs of the body like kidney, liver, etc.

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Answer 2

Double circulation gives the ability to create more pressure to pump blood round the whole body system. There is separation of oxygenated and deoxygenated blood. This lets supply of oxygen to different cells of the body. This process circulation is essential to land animals that have lungs.