Rodents are the normal hosts for which of the following encephalitis viruses?
A. eastern equine encephalitis (EEE)
B. St. Louis encephalitis
C. Venezuelan equine encephalitis (VEE)
D. western equine encephalitis (WEE)
E. West Nile virus
Answer: C
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A polymer coat consisting of a dense, well-defined polymer layer surrounding a cell is called a
A) capsule. B) glycocalyx. C) lipopolysaccharide. D) slime mold.
A production/respiration ratio of one indicates:
a. the reef is productive and exporting nutrients. b. little biomass is available for export. c. the reef may begin to decline. d. community respiration is too high. e. algae are overgrowing the coral.
The lens is bathed on both sides by
a. the vitreous humor. b. the aqueous humor. c. blood. d. a solution rich in glucose. e. the enzymes for proper function.
Answer the following questions true (T) or false (F)
1. Bacteria store their DNA within a spherical nucleus. 2. When bacteria undergo binary fission, they produce identical daughter cells. 3. Most bacteria present in the human intestines are pathogenic.