The most common chromosomal abnormality appears on the 21st chromosome and is known as ____
a. Down syndrome c. Triple X syndrome
b. anencephaly d. spina bifida
A
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At age 17, Jeff aspired to become a serious musician. His group of friends began to change as he made more friends with serious musical interests and drifted away from friends with other interests. He is exhibiting peer
exclusion. facilitation. selection. focus.
Repeatedly presenting a CS by itself will result in ________
a. extinction b. spontaneous recovery c. stimulus discrimination d. stimulus generalization
Which of the following nervous systems would be most aptly summarized by the phrase "rest and digest"?
A) The sympathetic system B) The parasympathetic system C) The afferent system D) The efferent system
Ganglion receptive fields
A. are always the same size. B. do not show the same center-surround organization as bipolar receptive fields. C. are smaller in the periphery than in the macula. D. are smaller in the macula than in the periphery.