During respiration exchange of gases take place in (a) trachea and larynx (b) alveoli of lungs (c) alveoli and throat throat and larynx

• Soln:

Answer is (b) alveoli of lungs

Explanation:

Trachea, Larynx provide a passage for the movement of air. Gas exchange takes place in Alveoli of lungs. From alveoli oxygen diffuses into blood and Carbon-di-oxide exhaled out of blood.