The _____ is a diagnostic scanning technique that produces high-resolution images of the structures of the brain
a) MRI
b) EEG
c) PET
d) X-ray
Answer: a
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What is a change in the reproductive system of older women?
A. Dilated vaginal opening B. Thickened vaginal wall C. Loss of ability to orgasm D. Delayed vaginal lubrication
According to Bandura, the complex interplay between behavior, cognition, and environmental factors is due to:
a. self-actualization b. competence c. reciprocal causation d. positive self-regard
Once an action potential occurs at the axon hillock, why is it replicated at the next node of Ranvier? a. Incoming sodium ions diffuse to the next node, pushing potassium ions ahead as well, and threshold will be attained. b. The sodium-potassium pumps at the next node recapture sufficient potassium to reach threshold and trigger another action potential
c. The action potential drifts passively down the length of the entire axon. d. The occurrence of an action potential at the axon hillock attracts potassium from the adjacent node, and threshold will be attained.
Statistics are an important tool of researchers because scientists value _____
a. determinism c. empiricism b. curiosity d. organization