7th Class Science Respiration in Organisms Question Bank Respiration In Plants And Animals

  • question_answer
    Lungs have large number of alveoli for

    A) more nerve supply

    B) having proper shape

    C) more space for increasing volume of inspired air

    D) more surface area for diffusion of gases.

    Correct Answer: D

    Solution :

    more surface area for diffusion of gases.


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