what is heartbeat?
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Answer:
A heartbeat is a two-part pumping action that takes about a second. As blood collects in the upper chambers (the right and left atria), the heart's natural pacemaker (the SA node) sends out an electrical signal that causes the atria to contract.
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Answer:
If there is no heartbeats they will die
Explanation:
Heartbeats will give blood to every parts in body
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