Over 90% of Staphylococcus aureus isolates are penicillin-resistant. Why?
A) They have loosely organized polysaccharide slime layers which protects their cell wall.
B) They produce coagulase.
C) They have a coating of protein A.
D) They produce ?-lactamase.
E) They produce staphylokinase.
D
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The Limulus amebocyte lysate assay is used to detect endotoxin in clinical samples such as serum or cerebrospinal fluid
Indicate whether the statement is true or false.
As a result of _____, an old animal usually has more pollutants in its body than a young one
a. bioaccumulation b. biological magnification
Which of the following has the LEAST general acceptance?
A. Theory. B. Law. C. Hypothesis. D. Theory, law, and hypothesis have equal acceptance.
Staphylococcus aureus is one of the most important human and animal staphylococcal species. It is characterized by ability to produce coagulase.
a. true b. false