Which one of the following causes the most severe illness in humans, with a mortality rate of 30 percent?
A) western equine encephalitis
B) eastern equine encephalitis
C) St. Louis encephalitis
D) California encephalitis
E) West Nile encephalitis
Ans: B) eastern equine encephalitis
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Low-moisture conditions favor allocation by a plant to
A) leaves. B) stems. C) roots. D) flowers.
Tissue transplantation has been made possible by our ability to
A) competitively inhibit HLA molecules. B) alter the expression of the HLA molecules. C) inhibit the binding of helper T cells to the HLA. D) closely match HLA molecules between individuals. E) inhibit interleukin-5.
An example of an animal already extinct as a result of overhunting is the:a
rhino. b. passenger pigeon. c. macaw. d. Carolina parakeet. e. wolf.
In binomial nomenclature, an organism's scientific name includes its _______ and _______.
Fill in the blank(s) with the appropriate word(s).