16. Chemicals in cigarette smoke paralyze cilia of cells lining the trachea and bronchi. As a result, cigarette smokers often

Question

16. Chemicals in cigarette smoke paralyze cilia of cells lining the trachea and bronchi. As a
result, cigarette smokers often experience
(a) frequent coughing
(b) low stamina
(c) pale complexion
(d) premature wrinkling of the skin

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