Isolates from cerebrospinal fluid (CSF) or respiratory tract specimens that are gram-negative coccobacilli grow on chocolate agar in CO2 but not on blood agar, and are porphyrin-negative and nonhemolytic on rabbit or horse blood may be identified as:
a. H. parainfluenzae.
b. Haemophilus parahaemolyticus.
c. H. haemolyticus.
d. H. influenzae.
D
All characteristics listed are those that describe H. influenzae.
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What will be an ideal response?
In all but the simplest animals, osmoregulation and excretion is carried out using tubules that are
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Which of the following leads to the occurrence of vertebrate sense organs?
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A microbiologist explains to one of her biology classes that her research focuses on the nucleoid region of the cholera bacteria. This means that she is studying a region within the bacterium that contains the
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