Multiple Choice
When you exercise intensely, your rate of gas exchange rises because
A) muscle contraction requires oxygen to lessen the amount of ATP that is produced.
B) the amount of carbon dioxide required for cellular respiration increases.
C) the muscle cell mitochondria require more oxygen.
D) the surface area-to-volume ratio of the lungs decreases.
Correct Answer:
Verified
Correct Answer:
Verified
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