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

  • question_answer
    DIRECTIONS: Read the passage(s) given below and answer the questions that follow. Passage - 4 Lungs are present in chest cavity. This cavity is surrounded by ribs on the sides. A large muscular sheet called diaphragm form the floor of the chest cavity. During inhalation the ribs move ____ and diaphragm moves ______.

    A) down, up       

    B) up, down

    C) up, up                         

    D) down, down

    Correct Answer: B

    Solution :

    up, down


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