In the context of neurotransmitters, which of the following best describes the effect of norepinephrine stimulation?
A. It helps to control the level of alertness.
B. It inhibits the heart muscle, intestines, and urogenital tract.
C. It plays a role in forming emotional bonds with romantic partners.
D. It plays a role in the human tendency to feel pleasure during orgasm.
Answer: A
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The trichromatic and opponent process theories of color vision are not in conflict because each corresponds to ________________
a) a different portion of the spectrum b) the opposite half of perceivable colors c) one type of color blindness d) a different stage of visual processing
From the ________ perspective, family members participate in a variety of subunits, such as relationships between adolescents and their fathers, adolescents and their mothers, and adolescents and their individual siblings
A) culture-based roles B) family systems C) ecological-families D) communal families
A preference for using the right or left hand for most activities is referred to as
a. brain lateralization. b. hand lateralization. c. handedness. d. preferential dominance.
Which of the following statements about physical attractiveness is NOT true?
A) ?Attractiveness is an important factor in dating. B) ?Males in particular reportedly prefer attractiveness in their same- and other-gender friends. C) ?Judgments about physical attractiveness change as one learns about the person's personality. D) ?Homosexuals place more importance on the physical attractiveness of their dating partners than heterosexuals do.