The onset of autism spectrum disorder is always before the age of
A) 1
B) 2
C) 3
D) 4
C
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The effects of fetal alcohol syndrome:
A. continue into adolescence and adulthood B. are less severe than fetal alcohol effect C. tend to lessen in adulthood D. are reduced by vitamin therapy
What is the term used to describe the bulbs located at the end of the axon?
a) axon terminals b) synaptic vesicles c) synapses d) receptor sites
The incubation period for AIDS is
a. about two years b. about six months c. about eight to ten years d. about twenty years e. about eight weeks
Christy wants to determine the influence of sleep on academic performance. Blindly, she divides her volunteers into two groups-a control group that will sleep the standard 8 hours a night and a second group that will sleep 5 hours a night. What type of study is Christy conducting?