How is the heart useful to …

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Posted by Krishan Rajesh 6 years, 1 month ago
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Krishan Rajesh 6 years, 1 month ago
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Gaurav Seth 6 years, 1 month ago
The rhythmic beating of the various chambers of the heart maintains the circulation of blood and transport of substances to the different parts of the body, providing oxygen & nutrients to the cells or tissues and removing carbon dioxide and other wastes
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