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TEA [102]
3 years ago
5

What happens to your breathing when you’re working hard (exercising)?

Biology
2 answers:
Art [367]3 years ago
3 0

.....................

MakcuM [25]3 years ago
3 0

Answer:

It quickens

Explanation:

Your heart rate increases with an increase in activity, bringing more oxygen into the blood; this increase causes you to breath in more air than you would when your body is in a resting state.

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