Weight loss dieting in humans has been shown to
a. increase absolute abundance of Firmicutes bacteria
b. decrease absolute abundance of Firmicutes bacteria
c. increase relative abundance of Firmicutes bacteria
d. decrease relative abundance of Firmicutes bacteria
e. not affect bacterial populations in human intestines
D
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All of the following are components of nonspecific immunity EXCEPT
A. skin. B. phagocytes. C. complement. D. lysozyme. E. B cells.
Teichoic acids, mycolic acids, peptidoglycan, and disaccharide-pentapeptide subunits are all building blocks of which bacterial structure?
a. Outer cell membrane b. Flagella c. Inner cell membrane d. Cell wall
In Pavlov's dog experiment, what were the original and conditioned stimuli?
A. original stimulus: food; conditioned stimulus: metronome B. original stimulus: experimenter; conditioned stimulus: saliva C. original stimulus: metronome; conditioned stimulus: saliva D. original stimulus: metronome; conditioned stimulus: experimenter E. original stimulus: saliva; conditioned stimulus: food
Which of the following is paired INCORRECTLY?
A) plants; cellulose cell wall B) algae; glycocalyx C) bacteria; peptidoglycan cell wall D) fungi; polysaccharide cell wall E) archaea; protein cell wall