Enkephalins, endorphins, and dynorphins are:
A. three types of opioid receptors found in the brain.
B. three chemical classes of synthetic prescription opioids.
C. three classes of endogenous chemicals that have effects similar to morphine.
D. enzymes in the brain that convert morphine into its active form.
Answer: C
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The shrinking middle class is a phenomenon that results from those in the middle-class rising to executive positions for more pay
a. true b. false
Which of the following has generally not been a problem with collection of data through a population register?
a) In Europe, the population has resisted cooperating with population registers. b) Temporary migrations are not recorded. c) An event such as a birth is recorded, but the date it occurred is incorrectly entered as the data of registration of the event. d) An area has a very mobile population, and some people are never entered in the register of the area in which they reside.
Prior to _____, there was very little separation between work and family
a. the Feminist movement of the 1970s b. the American Revolution c. agrarianism d. industrialization
We cannot say that the use of one drug causes the individual to experiment with another drug. To do so would be the fallacy of non sequitur.
Answer the following statement true (T) or false (F)