The key use of PHA-L, a lectin made by kidney beans, in neuroscience is to
a. preserve brain tissue.
b. create neuronal lesions.
c. degrade acetylcholine molecules.
d. label neuronal pathways by anterograde transport.
e. create a reversible lesion that can temporarily alter behavior.
Answer: d. label neuronal pathways by anterograde transport.
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In the diathesis-stress model, a stressor is __________.
A. a distal, sufficient cause of a mental disorder B. a necessary or contributory cause that is distal from the onset of symptoms C. a necessary or contributory cause that is proximal to the onset of symptoms D. a biological vulnerability
The orderly sequence in the development of motor abilities from crawling to walking is a result of
a. cultural influences. b. maturation. c. attachment or bonding. d. imitation or modeling.
The idea of generalized intelligence was advocated most strongly by ____
a. ?Charles Spearman b. Robert Sternberg? c. ?Howard Gardner d. ?Alfred Binet
Which of the following is correct?
A. Playing with toys will decrease the completion rates of doing math problems. B. Getting time off will decrease the rates of selling cars. C. Getting time off will increase the rates of selling magazines. D. Getting a paid lunch will decrease the rates of selling cars.