Which of the following is NOT found in the gastrointestinal tract of a healthy individual?

a. protists
b. Clostridium
c. Bacteroides
d. Bacteroidetes


Answer: A

Biology & Microbiology

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Which amino acid is most soluble in water?

A. Valine B. Glycine C. Leucine D. Serine

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After a B cell is activated, it no longer needs T cell interactions or cytokines to make antibody

Indicate whether the statement is true or false.

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What is the basis of the food chains in pelagic ecosystems?

a. Detritus b. Zooplankton c. Phytoplankton d. Seaweeds

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Patients with congenital prolongation of the Q-T interval are at GREATEST risk for:

A) sudden asystole. B) ventricular arrhythmias. C) coronary artery disease. D) acute myocardial infarction.

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