Alleles

a. in a chromosome pair are always identical.
b. in a chromosome pair are always different.
c. in a chromosome pair are sometimes identical and sometimes different.
d. occur singly, not in pairs.

c

Psychology

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___________ therapies work to treat depression by helping the depressed understand how their thinking affects their emotions and learn to adjust their thinking and emotions

a. Humanistic b. Behavioral c. Medical d. Cognitive

Psychology

In Pavlov's experiment, the dog salivating to food is an example of a(n) __________

a. unconditioned response (UCR) b. conditioned response (CR) c. unconditioned stimulus (UCS) d. conditioned stimulus (CS)

Psychology