What set of theories proposes that the body's constant manufacture of energy creates by-products, which combine with toxins that eventually impair the body's ability to function normally?
A. life expectancy theories of aging
B. genetic programming theories of aging
C. wear-and-tear theories of aging
D. inevitable death theories of aging
Answer: C
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According to the cascade model of substance abuse, intervention
a. is only possible when peer mentors are involved. b. can only occur once a child or adolescent has reached the final step. c. is impossible, although reduction of use is possible. d. can occur during each step.
______ would help control for bias in a pretest–posttest design.
a. Increasing the amount of time between the pretest and posttest b. Including a control group that does not receive the treatment c. Using fewer subjects d. Using the posttest scores as the dependent variable
Not noticing that your mother changed the curtains in your family room is an example of change blindness.
Answer the following statement true (T) or false (F)
Following some of the normal declines occurring after age 60, the aging brain compensates by
A) becoming more lateralized. B) increasing the size of the frontal lobes. C) generating new neurons and synapses. D) increasing the intensity and speed of brain waves.