Why does your heart beat faster when you exercise?

Social Studies

2 answers:

daser333 [38]3 years ago

8 0

Answer:

I think the (b) option. 

Explanation:

mihalych1998 [28]3 years ago

3 0

2nd option
Because when yawing all this energy of the process of cellular respiration in the mitochondria the cells need a supply of o2 which the heart starts pumping faster than o bring and process more

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