The brain structure that appears to play a vital role in the regulation of body temperature, hunger, and thirst is the

In vision, the term accommodation describes __________

a) the dilation and contraction of the iris as it lets light into the pupil. b) the refraction of light off the cornea into the pupil. c) a loss of visual acuity related to age. d) the flattening and bulging of the lens as it focuses images on the retina.

Twin studies suggest that personality traits measured by the MMPI are determined:

a. by both the environment and genetics, but genetics probably plays a greater role b. entirely by genetics c. entirely by the environment or experience d. by both the environment and genetics, with each equally important