1.

Where in the respiratory system does oxygen, from the air breathed in pass into the blood. Option 1 : trachea Option 2 :bronchi Option 3 : bronchioles OpOpti 4 : alveoli

Answer»

Where in the respiratory system does oxygen, from the air breathed in pass into the blood.

Option 1 : trachea

Option 2 :bronchi

Option 3 : bronchioles

OpOpti 4 : alveoli



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