An artist is sketching a scene. In order to show space, depth, and distance within his drawing, he must use which of the following?
a. stereoscopic vision
b. pictorial depth cues
c. pictorial convergence cues
d. figure-ground organization
ANSWER: b
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Studies have shown that if people can give up smoking,
a. their risk of cardiovascular disease declines, but their risk of pulmonary disease increases. b. their overall health risks decline reasonably quickly. c. their risk of pulmonary disease declines, but their risk of cardiovascular disease increases. d. their health risks never decline to the level of those who never smoked.
The hormone thyroxine, secreted by the thyroid gland, is essential for the normal growth of the
a. gonads, especially in boys. b. extremities of the head, such as nose, ears, and lips. c. internal organs, such as the kidneys and liver. d. brain and bones.
Red, or long-wavelength, cones contain which of the following photopigments?
a. rhodopsin b. cyanolabe c. chlorolabe d. erythrolabe
Pavlov placed food in the mouths of the dogs, and they began to salivate. Pavlov's student noticed that after a few days the dogs began to salivate at the sound of the student's footsteps. The salivation to the sound of the footsteps was a __________.
A. primary reinforcer B. positive reinforcer C. conditioned response D. secondary reinforcer