1) Air enters our body through ________________________________________________________ . a) THE NOSE AND MOUTH b) THE MOUTH c) THE NOSE 2) The air passes through the _____________________________________________ to the bronchi. a) BRONCHI b) TRACHEA c) LUNGS 3) The air passes from the bronchi to the _______________________________________________ . a) BRONCHIOLES b) ALVEOLI c) TRACHEA 4) The air then passes into the ________________________________________________________ . a) ALVEOLI b) BRONCHIOLES c) CAPILLARIES 5) Here, the _______________________________ from the air we breathe in passes into the blood. a) OXYGEN b) CARBON DIOXIDE

THE RESPIRATORY SYSTEM

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