What virulence factor(s) of Yersinia pestis prevent(s) phagocytosis by cells of the immune system?

A) the capsule
B) leukocidins
C) murine toxin
D) V and W antigens


Answer: A

Biology & Microbiology

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Biotech barnyard animals produce which of the

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A linear depiction of energy flow in an ecosystem is a(n):

a. food web. b. food chain. c. trophic web. d. ecological pyramid. e. pyramid of numbers.

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Pasteur's experiments on fermentation laid the foundation for

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