Question

Describe double circulation in human beings. Why is it necessary?​

Answer 1

Answer:

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Answer 2

Answer:

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One loop is oxygenated and the other is de-oxygenated. This double circulatory system is important because it ensures provision of oxygenated blood to the muscle and not a mixture of oxygenated and de-oxygenated blood. Hence, this system ensures efficient supply of oxygenated blood to the muscles.