The development of acute rheumatic fever and subsequent valvular heart disease are problems that may be encountered by patients infected with:
a. Enterococcus faecalis.
b. S. pneumoniae.
c. S. pyogenes.
d. S. agalactiae.
C
Acute rheumatic fever and valvular heart disease are sequelae that sometimes develop in patients infected with S. pyogenes.
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The photic zone in aquatic environments is typically about how deep?
A. 10 m B. 50 m C. 100 m D. 500 m E. 1000 m
A drug that inhibits the Y5 receptor has been shown to
a. have an effect on body weight in normal rats. b. have an effect on body weight in obese rats. c. have an effect on food intake in normal rats. d. have an effect on food intake in obese rats. e. have no effect on food intake or body weight in any rats.
Ghrelin is
a. a drug used to control weight gain. b. a signaling molecule released by the adipose cells to stimulate appetite. c. a signaling molecule released by cells in the stomach and brain to stimulate appetite. d. a hormone found only in mice that is used to study weight loss. e. none of these
Which type of white blood cell is particularly attracted to sites of parasitic worm infections?
A. Monocytes B. Neutrophils C. Basophils D. Lymphocytes E. Eosinophils