Biology, asked by shivani1557, 9 months ago

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

Answers

Answered by hanshraj26
1

Answer:

Ans. During a single cycle blood goes twice in the heart which is known as double circulation. It is necessary in human being to separate oxygenated and de-oxygenated blood because this makes their circulatory system is more efficient and helps in maintaining constant body temperature.

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Answered by Soumaji4407D
0

Answer:

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