The phenomenon whereby higher doses of a drug are required to produce its original effects is
A) a craving.
B) potentiation.
C) tolerance.
D)withdrawal.
Answer: C
Rationale: Tolerance occurs when repeated use of a drug results in a need for a higher dose to get the intended effect. People build up a tolerance to most drugs, including alcohol.
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Tuan identifies his sexual orientation as bisexual. Tuan _________
A) ?is more likely to disclose his sexual orientation to the important people in his life than a gay or lesbian individual. B) ?is more likely than a gay or heterosexual man to disclose his sexual orientation to his health care providers. C) ?may feel he does not fit in with either the gay or the straight community. D) ?most likely is actually gay, but does not feel able to accept this about himself.
Project Head Start was designed to provide children from low-income families with
A. training in job-related skills to reduce reliance on public assistance programs. B. opportunities to freely choose better schools away from their neighborhood schools. C. early opportunities to develop skills important for success in school. D. low-cost meal programs so they would be physically ready to learn.