The most severe rickettsial illness is caused by _____.
A) Rickettsia typhi
B) Rickettsia rickettsii
C) Orientia tsutsugamushi
D) Ehrlichia chaffeensis
Ans: B) Rickettsia rickettsii
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Eukaryotic cells contain membrane bound _____________________ in their cytoplasm.
Fill in the blank(s) with the appropriate word(s).
All of the following methods are employed to identify pathogens in clinical specimens EXCEPT
A. biochemical tests. B. special stains and microscopy. C. culture on a variety of all-purpose, selective, and/or differential media. D. molecular testing for nucleic acids. E. immunoassays. F. There are no exceptions here. All of these methods are used to identify pathogens.
Water balance is maintained by the structures labeled
a. 1 and 3. b. 5 and 9. c. 7 and 8. d. 6 and 9. e. 1 and 6.
Which phrase best describes the result of meiosis?
a. the generation of four haploid cells b. the generation of four diploid cells c. the generation of two diploid cells and two haploid cells d. the generation of two diploid cells