Science, asked by musamusadiq786, 5 months ago

What work does the heart do tirelessly​

Answers

Answered by btsarmygirl3
2

Explanation:

The heart works tirelessly – more than 2.5 billion times over an average lifetime – to pump blood around the body. ... When you exercise, your heart beats more quickly. This is because your muscles are working harder and need more oxygen to keep going.

Answered by cuteprincess1801
0

The heart works tirelessly – more than 2.5 billion times over an average lifetime – to pump blood around the body. ... When you exercise, your heart beats more quickly. This is because your muscles are working harder and need more oxygen to keep going

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