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9th Class Science Why do we fall Ill? Question Bank Health and Diseases

  • question_answer
    Which of the following body defences traps, engulfs and sweeps disease-causing agents towards the body openings?

    A) Body secretions

    B) Enzymes and compounds in the blood

    C) Mucous membrane

    D) Immune system  

    Correct Answer: D

    Solution :

    Immune system provides immunity and resistance to defend against various diseases.


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