This macrophage, which has phagocytized and displayed the antigen on its surface, is acting as a(n):
A. lymphocyte clone
B. antigen-presenting cell
C. plasma cell
D. memory cell
Ans: B. antigen-presenting cell
Biology & Microbiology
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Athlete's foot is an example of a
A) protozoal infection. B) superficial fungal infection. C) superficial parasitic infection. D) hypersensitivity reaction.
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K. denitrificans, which is nonhemolytic and tends to pit the agar, also grows on selective media that support the growth of which gram-negative diplococci?
a. Capnocytophaga spp. b. C. hominis c. A. aphrophilus d. N. gonorrhoeae
Biology & Microbiology
Variation
What will be an ideal response?
Biology & Microbiology
An example of an anion is K+
__________________ Indicate whether the statement is true or false.
Biology & Microbiology