What single behavior contributes to the most deaths in the United States?
a. poor diet
b. tobacco use
c. alcohol intake
d. risky sexual activity
e. unsafe driving
ANS: B
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What process occurs when body size increases as a result of an increase in the number and/or size of cells?
a. Development b. Growth c. Maturation d. Aging
Which of the following is an effect of the Green Revolution?
A. decreased vulnerability to climate events B. increase in food diversity C. increased release of greenhouse gases D. conservation of topsoil
Bovine spongiform encephalopathy, also known as mad cow disease, is caused by __________.
Fill in the blank(s) with the appropriate word(s).
Which of the following is a major function of chloride?
a. Participates in wound healing b. Helps maintain gastric acidity c. Acts as principal intracellular electrolyte d. Protects bone structures against degeneration e. Supports immune system functioning