Answers

2015-12-24T21:45:33+05:30
Function of heart : The Heart pumps blood to all parts of the body.
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2015-12-24T22:59:58+05:30
The heart is the key organ in the circulatory system. As a hollow, muscular pump, its mainfunction is to propel blood throughout the body. It usually beats from 60 to 100 times per minute, but can go much faster when necessary.
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