Biology, asked by anushisharma, 1 year ago

what is called heart beat?

Answers

Answered by DasariJahnavi
5
the friction due to the movement of atrio-ventricular valves and semi-lunar valves called lub and dup is called a heart beat for human heart beats nearly 1,03,680 times a day
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Answered by kin21
5
The heart beat is the beating of heat per minute.It is also defined as contraction and relaxation of heart per minute.
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