Epidemics related to bacterial infection of the digestive system are typically caused by
A) biological vectors.
B) contaminated food and water.
C) unpasteurized milk.
D) the respiratory route.
E) exposure to contaminated soil.
B
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Heat shock proteins are
A) only actively synthesized during conditions of intense heat. B) only observed in prokaryotic cells. C) molecular chaperones synthesized during times of cellular stress. D) unique to every organism. E) present only in certain organelles.
In mitosis, chromatids separate and move to the center of the cell during ____________________. What will be an ideal response?
Which is an anaerobic excavate that is an endosymbiont of animals?
a. diatom b. euglenoid c. parabasilid d. actinopod e. dinoflagellate
What is the usual cause of pseudomembranous colitis
A. improperly home-preserved foods containing botulin toxin B. eating unpasteurized dairy containing Listerla monocytogenes C. handling infected animals contaminated with E. rhusiopathiae D. therapy with broad-spectrum antibiotics leading to superinfection by C. difficile E. living in dose contact with someone infected with C. perfringens