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get tiredsoonandwillhaveapaieIOUkQ.11. Describe double circulation in human beings. Why is it necessary 1?of tho ight side and left side of the heart is usefal so as to p |
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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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