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प्रश्न
Which one of the below is not a function of the respiratory system?
पर्याय
Allows oxygen from the air to enter the blood and carbon dioxide to leave the blood and enter the air.
Can alter the pH by changing oxygen levels.
Provides protection against some microorganisms by preventing their entry into the body and by removing them from respiratory surfaces.
Allows for speech and sound generation.
MCQ
उत्तर
Can alter the pH by changing oxygen levels.
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