What was a major factor for the increase in human populations?
a. A large stable base of calories.
b. The hunter-gatherer societies.
c. Reduction of common diseases.
d. Access to better medical care.
A
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Charles has experienced persistent problems with voluntary control over ejaculation upon penetration. Charles most likely has:
A. a sexual deviation B. paraphilia C. premature or rapid ejaculation D. inhibited sexual disorder
The key idea behind the trichromatic theory of color vision is that:
a. the retina contains three kinds of color receptors b. increased activation of one type of color cell will decrease activation in another c. ganglion cells encode most aspects of color d. each hemisphere of the brain processes color differently
When American and Japanese participants were shown drawings of everyday scenes,
such as a farm, and were later shown slightly changed versions of the same scene, the Japanese participants tended to a. be better at detecting changes in the figure of the scene. b. be better at finding alterations in the background of the scene. c. find fewer overall changes. d. find significantly more of the changes.
In one study, a group of consumers were given an option to
purchase jam with half of them choosing from six different flavors and the other half choosing from 24 flavors. The researchers found that the consumers with more choice expressed a. more interest and were more likely to purchase a jam. b. more interest, but were less likely to purchase any jam. c. less interest, but were more likely to purchase a jam. d. less interest and were less likely to purchase any jam.