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Monica [59]
3 years ago
13

At the beginning every heartbeat the heart is what?

Biology
1 answer:
PSYCHO15rus [73]3 years ago
6 0

Answer:

The heart is a pump, usually beating about 60 to 100 times per minute. With each heartbeat, the heart sends blood throughout our bodies, carrying oxygen ... It sends out an electrical signal to start the contracting (pumping) of the heart muscle.

Explanation:

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