The preferred fixative for the Warthin-Starry technique is:
a) Carnoy
b) Bouin solution
c) absolute alcohol
d) 10% buffered formalin
Answer: d) 10% buffered formalin
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Which of the following organisms are resistant to destruction by typical disinfection methods?
A. Endospores of Bacillus and Clostridium B. Pseudomonas C. Non-enveloped viruses D. Mycobacterium spp. E. All of the choices are correct.
You are a farmer that grows corn. You are offered a genetically modified variety of corn that is 100
percent resistant to corn borers. You have to decide what proportion of your field you should plant in resistant corn versus a variety that is susceptible to corn borers. Explain why you might choose one of the following proportions of resistant to susceptible: 100:0, 90:10, 75:25, or 50:50.
What will be an ideal response?Long-term exposure to cold can alter metabolism and encourage __________ in which brown adipose
tissue produces heat. Fill in the blank(s) with the appropriate word(s).
Which of the following gastrointestinal responses is part of the nonspecific host response?
A) Mucociliary blanket B) Peristalsis C) Insulin production D) Decreasing acid production