Visual acuity is sharpest, when images cast by the environmental stimuli fall directly on
the fovea, because
a. most of the cones in the fovea send their signals to only one ganglion cell instead of
several.
b. there are fewer bipolar and ganglion cells in the area surrounding the fovea than there are in
the retina's periphery.
c. there are no photoreceptors in the retina's periphery.
d. the fovea has no blind spot.
e. the distance between the retina and the optic nerve is minimized at the fovea.
a. most of the cones in the fovea send their signals to only one ganglion cell instead of
several.
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Which of the following statements is TRUE?
a) U.S.-born Latino adolescents are just as likely to attempt suicide as foreign-born Latino youths. b) Foreign-born Latino adolescents are twice as likely to attempt suicide as U.S.- born Latino youths c) Foreign-born Latino adolescents are just as likely to attempt suicide as U.S.-born Caucasian adolescents d) U.S.-born Latino adolescents are twice as likely to attempt suicide as foreign-born Latino youths.
Recently, Russian cosmonauts found that bone health could be reasonably maintained up to what period of time if vigorous exercise in the form of treadmill walking and running was maintained while in space?
A. 3 months B. 6 months C. 9 months D. 1 year E. 1.5 years