A) oxygen in trachea
B) concentration of \[{{O}^{2}}\]
C) concentration of \[C{{O}^{3}}\]
D) diaphragm expansion
Correct Answer: C
Solution :
Respiratory centre is more sensitive to the concentration of \[C{{O}_{2}}\] than to the concentration of \[{{O}_{2}}\] in the arterial blood.
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