The partial pressure of CO2 in the blood is monitored carefully by the human body,and any changes lead quickly to changes in respiratory rate.Both an increase in partial pressure of CO2 and _______ are stimuli that lead to increased respiratory gas exchange.
A) an increase in the partial pressure of N2 in the blood
B) a decrease in the partial pressure of O2 in the blood
C) the temperature as measured at the hypothalamus
D) increased acidity in the blood
E) a lowered pulse rate
Correct Answer:
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