The chief risk factor for skin cancer is known to be
A. ultraviolet radiation.
B. age.
C. obesity.
D. melanin.
Answer: A
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Skinner defined a reflex as a(n) ____.?
a. ?objectively observable product of the autonomic nervous system b. ?intervening variable c. ?respondent d. ?S-R connection e. ?S-R correlation and nothing more
Evidence that some cells in the lateral geniculate nucleus of the thalamus fire with an increased frequency when the eye is stimulated by red light, and fire with a decreased frequency when the eye is stimulated by green light, most directly supports the theory of color vision known as the:
a. frequency theory b. opponent-process theory c. trichromatic theory d. gate-control theory
An experimental procedure in which stimuli lose their ability to evoke learned responses because the events that had followed the stimuli no longer occur is the definition of__________________
Fill in the blank(s) with correct word
Dr. Hickel has discovered that if she electrically stimulates the cells in the POA, her mice will immediately experience
A. NREM sleep. B. wakefulness. C. REM sleep. D. coma.