Dan fell from a tree when he was younger and now he is afraid to climb anything more than three feet off the ground. What conditioning process is evident in Dan's behavior?
a) extinction
b) discrimination
c) generalization
d) backward conditioning
C
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Computerized axial tomography creates an image from ____
a. microwaves b. infrared rays c. x-rays d. gamma rays
Unlike normal human cells, cancer cells _____ unless destroyed by proper treatment
Fill in the blank with correct word
Which statement about disorders of interest and arousal is true?
a. Women with the disorder experience a more active sex life. b. In men, sexual interest or arousal disorder is very rare. c. Clinicians agree on criteria for determining the level of sexual desire considered "normal." d. For men, occasional problems in achieving or maintaining erection are common due to fatigue, alcohol, and anxiety with a new partner.
Which of the following is true of physical development during early adulthood?
A) Young adults are at their tallest during early adulthood. B) Women are normally stronger than men during early adulthood. C) The immune system suffers due to extreme stress during early adulthood. D) The skin begins to tighten in early adulthood.