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  3. 7th Class
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7th Class Science Sample Paper Science Olympiad Model Test Paper-5

  • question_answer
    The main organs of human respiratory system are:

    A) Nose, nasal passage, trachea, bronchi, lungs, diaphragm

    B) Nose, nasal passage, nephron, bowman capsule, lungs, diaphragm

    C) Nose, nasal passage, heart, liver, lungs, diaphragm

    D) Nose, nasal passage, medulla, cerebral hemisphere, lungs, diaphragm

    E) None of these

    Correct Answer: A

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