When you go to pick strawberries, you are easily able to separate the ripe red berries from the green foliage, the white blossoms and the green, still-forming berries. This has led to the suggestion that _____
A) ?we need experience with the natural world in order to experience color vision
B) ?the genes resulting in lack of color vision should have disappeared long ago
C) ?color vision may have evolved for the express purpose of detecting fruit
D) ?only herbivore species should have color vision
C
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Which of the following describes the relationship between smoking prevalence and employment status?
a. current smoking prevalence for those over 18 is higher among individuals who are unemployed b. current smoking prevalence for those over 18 is lower among individuals who are unemployed c. differences in smoking status between the unemployed and the employed are only evident in males d. there is no relationship
Sensations occur:
a. when a stimulus activates a receptor causing an impulse that is processed by the brain b. right after we experience illusions c. after the sense organs engage in perception d. once you react to the sensory input
Most physicians advise women who have just given birth not to resume sexual intercourse
a. for 4 to 6 weeks b. for 2 to 3 months c. until they have regained control over their bladder d. until they are through breast-feeding
The caudate nucleus, putamen, and globus pallidus are motor nuclei of the __________.
A. reticular formation B. pons C. basal ganglia D. medulla