Biology, asked by ChimChimsKookie, 10 months ago

are y'all mad or what I'm asking
What is a heart beat ? biological....one...
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Answers

Answered by Gautam308
0

Answer:

A heartbeat is a two-part pumping action that takes about a second.

hope it helps

Answered by trashikagoyal
2

Explanation:

Heart beat is a sound produced by contraction and relaxation of the four valves of the heart. A heart produces two sound lub and dub which make one heartbeat.

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