Which of the following statements regarding cigarette smoking is true?

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    Cigarette smoke damages the alveoli.
    Cigarette smoke decreases the amount of oxygen in the blood.
    Cigarette smoke causes many types of cancer.
    Cigarette smoke can lead to heart damage.
    all of the above

asked May 30, 2013 in Biology by anonymous
    

1 Answer

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all of the above
answered May 31, 2013 by Bioshare ~Top Expert~ (34,070 points)

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