The most common bacterial cause of diarrhea in the United States is ________.
A. Salmonella
B. Campylobacter
C. E. coli
D. Shigella
Answer: B
You might also like to view...
In electron transport, which respiratory complex is not involved in the flow of electrons from FADH2?
A) complex I B) complex II C) complex III D) complex IV E) all of the above
Communities of organisms are made up of:
a. populations of different species. b. different habitats. c. two or more populations of the same species. d. ecosystems. e. interacting niches.
A researcher is studying a newly discovered toxin. The effect of this toxin is to block the action of the sodium-potassium pump. What prediction can be made about the effect of this toxin on cell volume?
A) The cell volume will increase as water flows into the cell by osmosis. B) The cell volume will decrease as no potassium will be pumped into the cell. C) The cell volume will decrease as no sodium is pumped out of the cell. D) The cell volume will remain the same since the transport of water is not directly affected by this toxin.
What is the job of tRNA during translation?
A. It carries amino acids to the mRNA. B. It triggers the formation of a covalent bond between amino acids. C. It binds to the small ribosomal subunit. D. It triggers the termination of the protein.