All of the following are true of AIDS,
EXCEPT which of the following statements?
a. It is the result of a secondary immune
deficiency.
b. It is a consequence of infection with HIV.
c. Sufferers are susceptible to infection and
rare forms of cancer.
d. It is easily curable in the U.S.
e. It is a global health concern
D
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A dental student wants to test if fluoride is an effective additive against tooth decay. The student studies tooth decay in a population of people who live in neighborhoods supplied with fluoridated water. This student would like to ask whether access to fluoridated water prevents tooth decay. What would be an effective control group to ask this question?
A. Individuals who have fluoride added to their toothpaste but not their water. B. Individuals with access to fluoridated water. C. Individuals with access to water with no fluoride added. D. Individuals with access to differing amounts of fluoride in the water.
You find a protist that is unicellular, heterotrophic, and non-flagellated. It has two nuclei of different
sizes. You correctly conclude that this organism is a(n)
a. kinetoplastid. b. plasmodial slime mold. c. ciliate. d. foraminiferan. e. ameobozoan.
A relationship between two species in which one species lives in or on the other is
A. predation. B. niche sharing. C. resource partitioning. D. coevolution. E. symbiosis.
Lactose is a(n)
A) ribose. B) monosaccharide. C) oligosaccharide. D) polysaccharide. E) starch.