A resting potential occurs when a neuron

a. reaches -50 millivolts.
b. is inactive.
c. reaches its threshold.
d. reaches its trigger point for firing.

ANSWER: b

Psychology

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The cheapest, easiest, and safest way for physicians to monitor fetal development is by performing which of the following?

Ultrasound Amniocentesis Spinal tap Genetic counseling

Psychology

Jack and Sarah find that in their middle-aged years, many of their couple friends have either divorced or moved away, or do not share the same interests any more. Their adjustment illustrates which of Peck's issues of adult development?

a. socializing versus sexuality b. ego differentiation versus work-role preoccupation c. cathectic flexibility versus cathectic impoverishment d. mental flexibility versus mental rigidity

Psychology