Acute respiratory viruses cause ________.
A. bronchitis
B. tonsillitis
C. rhinitis
D. All of the choices are correct.
Answer: D
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Cells save energy and materials by using many of the same enzymes for both ________ and ________.
What will be an ideal response?
The inflammatory effects of immune complexes lodged in the kidney is called
A. renal phritis. B. rendema. C. glomerulonephritis. D. urethritis.
Meselson and Stahl separated DNA from different generations using:a
density gradient centrifugation. b. gel electrophoresis. c. an electron microscope. d. differential radioisotope labeling. e. None of these
What types of behaviors would you predict would be controlled by quorum sensing?
A. Behaviors effective for single bacteria B. Behaviors effective for groups of bacteria C. All behaviors D. Only virulence behaviors