Which of the following represents the use of osmotic pressure as a microbial control method?
A. Salting of meat
B. Bleaching a kitchen counter
C. Exposing dental equipment to UV light
D. Rinsing of a cut with Betadine
Answer: A
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Of the following organisms, which one is among the Aggregatibacter aphrophilus, Aggregati-bacter actinomycetemcomitans, Cardiobacterium hominis, Eikenella corrodens, and Kingella spp. (HACEK) group of organisms that cause slowly progressive bacterial endocarditis?
a. Capnocytophaga gingivalis b. Sphingomonas paucimobilis c. E. corrodens d. A. actinomycetemcomitans
Which of the following cell types is long lived and continues to produce antibody?
a. cytotoxic T cells b. memory B cells c. T helper cells d. plasma cells
e. macrophagesThe endogeneity problem that results from when a variable correlated with the treatment is not included as a control variable is known as the:
A. instrumental variable. B. weak instruments problem. C. omitted variable bias. D. least efficient estimator.
Which of the following is produced by fermentation?
A) beef jerky B) pasteurized milk C) pepperoni D) mozzarella cheese E) pepperoni and mozzarella cheese