what is double circulation? explain.
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The human circulatory system is a double circulatory system. It has two separate circuits and blood passes through the heart twice: the pulmonary circuit is between the heart and lungs. the systemic circuit is between the heart and the other organs.
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jab blood purification ke liye heart se do baar nikal ta h use hi khte h u can better understand via ur book ncert is most important don't skip any line from it
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