Sin Nombre hantavirus has all the following characteristics, except
A. it is transmitted by aerosol transmission from rodent excreta.
B. its reservoir is human carriers.
C. the first U.S. outbreak occurred in 1993 in the Southwest.
D. the symptoms are abrupt fever, lung edema, respiratory distress, and hypotension.
E. it is a zoonosis.
Answer: B
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A mast cell is similar to a basophil in that both
A. are types of white blood cells. B. are vasoactive mediators. C. are agranulocytic. D. act as primary phagocytes. E. None of the choices are correct.
How small is the smallest object that can be observed using a transmission electron microscope?
a. 2 µm b. 0.2 µm c. 2 nm d. 0.2 nm
The most amount of energy is available to
a. A. b. B. c. C. d. D. e. E.
During cytokinesis, a critical step in septation is the assembly of the ________.
A. replisome B. cytoskeletal spiral C. spindle body D. Z ring