The lack of susceptibility to diseases of other species in humans may be due to the

A. secretion of exotoxins.
B. presence of endotoxins.
C. action of IL-2.
D. lack of receptors that are recognized by adherence factors.


D

Biology & Microbiology

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Approximately how large is the human genome?

A) 20,000 bp B) 1 billion bp C) 3 billion bp D) 13 million bp E) 30 billion bp

Biology & Microbiology

Receptors in the human nose are

a. chemoreceptors. b. mechanoreceptors. c. photoreceptors. d. nociceptors. e. osmoreceptors.

Biology & Microbiology

Statistical associations, biologic credibility, sequence of events, and consistency among studies are all ways epidemiologists establish casual associates

a. true b. false

Biology & Microbiology

The amateur scientist (Koch/Leeuwenhoek/Pasteur) made his own microscopes and first reported the existence of microbes

What will be an ideal response?

Biology & Microbiology