CORRECT Answers
Animal species with __________ life expectancies tend to display __________ free-radical
damage to DNA. - CORRECT ANSWER✔✔- longer; slower rates of
The capacity of the immune system to offer protection __________ after age 20, partly as a
result of __________. - CORRECT ANSWER✔✔- declines; changes in the thymus
By age _____ nearly all U.S. young people have had sexual intercourse. - CORRECT
ANSWER✔✔- 25
One of the most serious diseases of the cardiovascular system is atherosclerosis, in which -
CORRECT ANSWER✔✔- heavy deposits of plaque containing cholesterol and fats collect
on the walls of the main arteries
Which of the following statements about alcoholism is true? - CORRECT ANSWER✔✔-
Alcoholism crosses SES and ethnic lines but is higher in some groups than others.
__________ prevents telomere shortening. - CORRECT ANSWER✔✔- Telomerase
Which of the following individuals is the most likely to be a smoker? - CORRECT
ANSWER✔✔- Damien, a high school dropout
__________ more often report depressive feelings than __________. - CORRECT
ANSWER✔✔- Young adults; middle-aged adults
Which of the following statements about Americans and exercise is true? - CORRECT
ANSWER✔✔- Over half of Americans are inactive, with no regular brief sessions of even
light activity.
Trena is an overweight adult. Compared with her normal-weight agemates, Trena is
__________ likely to __________. - CORRECT ANSWER✔✔- less; receive financial aid
for college
, Which of the following statements about diets and dieters is true? - CORRECT
ANSWER✔✔- Even when they have continued to gain weight, American adults generally
report weight losses.
Research suggests that foods __________ in __________ can forestall free-radical damage. -
CORRECT ANSWER✔✔- rich; vitamins
To study the impact of biological aging on motor skills, researchers focus on - CORRECT
ANSWER✔✔- competitive athletes
Ethan's blood pressure is higher than normal. This means that Ethan suffers from -
CORRECT ANSWER✔✔- hypertension
Which of the following statements about sexual attitudes and behaviors among U.S. young
adults is true? - CORRECT ANSWER✔✔- Single adults have more sexual partners than
those in committed relationships, but this does not translate into more sex
Tina is a master runner. If she practices consistently throughout her life, she can expect her
performance speed to - CORRECT ANSWER✔✔- drop only slightly from the mid-thirties
into the sixties, when it will fall off at an accelerating pace.
Which of the following statements about causes of death in the United States is true? -
CORRECT ANSWER✔✔- Death rates for all causes exceed those of other industrialized
nations
Which of the following adults in the most likely to be obese? - CORRECT ANSWER✔✔-
Lana, an African-American
Senescence - CORRECT ANSWER✔✔- varies widely across all parts of the body
Christian, Betty, Steve, and Nadine all quit drinking. Which of the following statements is
probably true? - CORRECT ANSWER✔✔- Two of them will relapse with in a few months