What proportion of U.S. adults have maintained a 10% weight loss for at least a year?
a. 1 in 600
b. 1 in 100
c. 1 in 60
d. 1 in 10
e. 1 in 6
ANS: E
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An antioxidant works to fight free radicals by __________.
a. delivering them to specific enzymes b. donating electrons to stabilize them c. converting them to less damaging substances d. destroying them by hydrolyzing them
Which of the following is LEAST susceptible to infectious disease?
a. A women who works out of a business office. b. A malnourished nursing home resident. c. An adolescent female participating in daily intensive physical training. d. A newborn infant.
All substances are potentially toxic, but are hazardous only if consumed in sufficiently large quantities
Indicate whether the statement is true or false
Cystic fibrosis is usually diagnosed by
a. a fecal fat test. b. a sweat test. c. genetic mapping. d. urinalysis.