Why do some older people tend to acquire color deficiencies?
a) Their neural impulses slow.
b) They are more likely to become confused in general.
c) As we age, the lens loses its ability to filter short wavelengths.
d) Their cones adapt to colors they have continually seen in the environment.
ANS: c
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The optic nerve exits from the retina at the ____________________
Fill in the blank(s) with correct word
One source of conservatism in science is provided by
a. green building initiatives b. a drastic increase in per capita spending c. defense contracting d. science's dependence on financial support
What is the chief form that generativity takes?
being guided by the younger generation establishing and guiding the next generation being grandparents being kinkeepers
Opportunistic illnesses that can be seen with AIDS include ____
a. diabetes c. haemophilus pneumonia b. cervical cancer d. herpes-induced sarcoma