After hyperventilating for several minutes, a person may develop short periods of apnea because
A. blood pH would drop and inhibit inspiration.
B. oxygen in the lungs has not had time to diffuse into the blood.
C. the level of oxygen has increased and inhibits the inspiratory center.
D. the level of CO2 decreases below the level necessary to stimulate the inspiratory center.
E. blood pH will rise and stimulate expiration.
D
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Fill in the blank(s) with the appropriate word(s).
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What will be an ideal response?