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During respiration exchange of gases take place in 

(a) trachea and larynx 

(b) alveoli of lungs

(c) alveoli and throat 

(d) throat and larynx

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The answer is (b) alveoli of lungs

  • 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 dioxide exhaled out of blood.

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