We do not see the blood vessels and neurons that lie in front of the retina because
a. the visual system does not respond much to stimuli that never change
b. these structures are made of special proteins whose fibers make them transparent.
c. they are blocked by the vitreous humor.
d. they lie behind the lens and cornea.
a
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Lower family income is associated with lower school achievement _________
a. in all ethnic groups b. only in African American and Latino families c. only in white and Asian American families d. in middle childhood but not adolescence
A marriage custom that involves one man having multiple wives is called
(a) polyandry (b) polygyny (c) matriarchy (d) patriarchy
Alvin is confused during a trip to the mall when he sees an item of clothing with arm holes that partially covers his torso. To make sense of this item, he compares it to his mental image of a jacket that he owns that he has worn for the past two years. In this scenario, Alvin is using
A. an exemplar. B. a prototype. C. a heuristic. D. an algorithm.
Explanations that focus on the characteristics of the immediate situation are described as more ______ than explanations that focus on background factors
A. distal B. proximate C. parsimonious D. social