All of the following are true about night blindness except:
a) it causes the vision to be decreased in dim light.
b) it occurs with aging.
c) it is caused by a lack of vitamin A.
d) it is caused by macular degeneration.
Answer: d) it is caused by macular degeneration.
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Approximately what percent of the mammalian body is composed of water?
a. 10% b. 20% c. 50% d. 70%
Charles Darwin's book that made the case for the theory of evolution was titled The Descent of Man
Indicate whether the statement is true or false
As you shop for laundry detergent, you are surprised to find a new fragrance offered by
your favorite brand. You are impressed that, although you have only ____________ different olfactory receptors, chemists can continue to develop ways to stimulate new ____________ of activity in them. a. 339; patterns b. 913; patterns c. 5; patterns d. 339; thresholds e. 913; thresholds
In which country is cohabitation virtually universal before marriage?
A. United States B. Sweden C. Kenya D. France