Biology for IGCSE & O level - Gas Exchange In Humans (Section 4 - No. 33)
How does exercise affect the rate and depth of breathing?
The rate decreases, while the depth increases.
Both the rate and depth decrease.
The rate increases, while the depth decreases.
Both the rate and depth increase.
Explanation
During exercise, the body requires more oxygen and produces more carbon dioxide, leading to faster and deeper breathing to meet these demands.
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