Biology, 21.11.2019 08:31, Kimberley5752

Pls , im in the test right now
when the blood oxygen level drops due to excercise; what happens after the change has been detected?

a. you shiver.

b. you breathe more rapidly and heavily, and your heart rate increases.

c. skin produces sweat.

d. the friction caused by the muscles shivering warms the body.

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Pls , im in the test right now
when the blood oxygen level drops due to excercise; what happen...

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