When does substance use typically decline for most?
A. while approaching the end of college
B. after having a negative experience with a substance
C. while separating from their core social group after high school
D. after transitioning into adult roles
Answer: D
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A certain weak stimulus produces no reflexive response, but a rapid repetition of that stimulus may produce such a response. What is this phenomenon called?
a. spatial summation b. temporal summation c. saltatory conduction d. synaptic combination
A new medical specialty called psychoneuroimmunology reflects the relationship among a. psychological factors including stress. b. the immune system
c. the nervous system. d. all of these
Regarding the causes of obesity, scientists would agree that the causes are ____.?
a. ?almost always biological factors b. ?almost always psychological factors c. ?almost always cultural factors d. ?a combination of biological, psychological, and cultural factors
The chief function of salt-tasting receptors in the mouth appears to be to identify
__________ chloride. a. potassium b. lithium c. sodium d. hydrogen e. bromium