Science, asked by princeverma90, 2 months ago

Describe double circulation of blood in human beings. Why is it necessary? in 5 points or short paragraph ​​

Answers

Answered by mamtajiya810
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.

Explanation:

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Answered by k81513869
0

Answer :

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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