Question

why breathing rate of a person doing heavy
physical excersine or work
or work may increase
to 30
times in
minute
apto 25​

Answer 1

Answer:

During exercise there is an increase in physical activity and muscle cells respire more than they do when the body is at rest. The heart rate increases during exercise. The rate and depth of breathing increases - this makes sure that more oxygen is absorbed into the blood, and more carbon dioxide is removed from it.

Explanation: