Laboratory animals reared in gnotobiotic conditions _____
a. are fed probiotics to disrupt the composition of their microflora
b. lack normal gut microbiota
c. develop appendicitis
d. have larger secondary lymphoid tissues than do control animals
e. have elevated levels of SIgA in the gut lumen.
B
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Which of the following smoking cessation products is available over the counter?
A. nicotine inhalers B. nicotine patches C. bupropion D. varinicline
The medical transcriptionist typed: "The patient's nasal mucus membranes were swollen and inflamed." The transcriptionist spelled all of the words in the sentence correctly
Indicate whether the statement is true or false
Long-term use of khat can result in all of the following EXCEPT:
A. cardiovascular problems. B. joint problems. C. periodontal disease. D. gastrointestinal problems.
Identify four discoveries, improvements, or advances since 1900 that have contributed to changes in the leading causes of death.
What will be an ideal response?