Which of the following facts about cigarette smoking and cancer is not true?
A. Smoking increases the risk of lung cancer more than 10-fold.
B. More than 80% of current smokers started before age 21.
C. Smoking has made lung cancer the No. 4 cancer killer of American women.
D. Lung cancer risk increases steadily with the number of cigarettes smoked per day.
Answer: C
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A defect in which of the following proteins blocks B-cell development at the pre-B-cell stage, resulting in almost no circulating antibodies in individuals with this defect?
a. IL-7 receptor b. terminal deoxynucleotidyltransferase (TdT) c. Pax-5 d. Bruton's tyrosine kinase (Btk) e. CD19.
Carcinomatosis means ________
A) a toxic level of cancer in the blood B) abnormal cells that look like cancer C) a condition of carcinoma in a specific site D) cancerous tumors in multiple sites
In evaluating the mechanism of injury, an athletic trainer should first ask the athlete what he or she heard or felt when the injury took place.
Answer the following statement true (T) or false (F)
The term substance use disorder refers to using
A. drugs with harmful effects. B. illegal drugs. C. narcotic drugs. D. drugs to an extent that they lead to an impairment of function.