Science, asked by kaurrubika, 10 months ago

hi guys
describe double circulation in human being why is it necessary
3 marks​

Answers

Answered by llxdevilgirlxll
2

Hyy Dude

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 ojas2020
1

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.

Explanation:

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