Chemoreceptors Are Very Sensitive to Changes in CO₂ Concentration in the Blood

question 48

Multiple Choice

Chemoreceptors are very sensitive to changes in CO₂ concentration in the blood. Increased CO₂ levels result in messages to the respiratory center to decrease the rate and depth of ventilation.

• A) Both statements are true.
• B) Both statements are false.
• C) The first statement is true; the second is false.
• D) The second statement is true; the first is false.

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