The _________ is the outer portion of the brain that contains two hemispheres and four regions with distinct functions.
A. hypothalamus
B. thalamus
C. hippocampus
D. cerebral cortex
Answer: D
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What discovery first demonstrated that color is in the eye and brain, not in the light itself?
a. Measurements of brain activity as people looked at various colors b. The inability of some people to distinguish red from green c. The chemical isolation of three types of cones in the retina d. The way a prism separates white light into several types of light
Dopamine belongs to the __________ class of monoamines.
A. indolamines B. ethylamines C. catecholamines D. amino acids
To investigate the effect of a new medication using a multiple-group design, a researcher proposes to use matched sets to decrease error variability. Practically speaking, the most likely type of research participants would be
a) animal littermates b) human twins. c) animal parents and offspring. d) human triplets.
Klinefelter syndrome occurs __________.
A. only in females B. only in males C. in equal proportions among males and females D. twice as frequently in females as in males