2. Questions Bank
  3. 7th Class
  4. Science
  5. Transportation in Animals and Plants

7th Class Science Transportation in Animals and Plants Question Bank Life Processes

  • question_answer
    Exchange of gases between the air and blood takes place across the walls of_______.

    A) Bronchiole                    

    B) Diaphragm

    C) Alveoli  

    D)        Trachea

    E) None of these

    Correct Answer: C

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