question_answer

      Draw diagram of respiratory system and label the following (a) Part through which air is taken in. (b) Part which protects the lungs. (c) Part which carries the air into the lungs. or (a) Part where air is filtered by fine hair and mucous. (b) Part which terminates in balloon-like structme. (c) Balloon-like structures where exchange of gases takes place. (d) Part which separates chest cavity from abdominal cavity.       or (a) Organ   that   is   surrounded   by cartilaginous ring. (b) Structure where exchange of gases takes place. (c) Voice box. (d) Muscular structure which flattens" during inhalation.    

Answer:

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