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  5. Respiration in Organisms

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

  • question_answer
    During inspiration, air passes into lungs due to

    A) increase in volume of thoracic cavity and lower lung pressure

    B) fall in pressure inside the lungs

    C) increased volume of thoracic cavity

    D) muscular expansion of lungs

    Correct Answer: A

    Solution :

    increase in volume of thoracic cavity and lower lung pressure


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