When processing biologically contaminated specimens, the microbiologist is susceptible to exposure through all of the following except:
a. exposure through mucous membranes.
b. a break in the glove.
c. a cut on the patient's wrist.
d. breathing in aerosolized droplets.
B
A break in the microbiologists glove will not necessarily present a risk to the microbiologist as long as the skin is intact. The other activities can pose risk for transmission of a variety of infec-tious agents.
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Which characteristic is NOT associated with Vibrio spp.?
A) aquatic B) gliding motility C) gram-negative D) pathogenic
Anammox is represented by which of the following equations?
A. NH4+ + 2H2O NO2- + 4H2 B. N2 + 2H2O NH4+ + NO2- C. NH4+ + NO2- N2 + 2H2O D. NO2- + 4H2 NH4+ + 2H2O E. 2H2O + 2NO3- 2NH2- + 4O2
An ecological footprint is a construct that is useful
A) for a person living in a developed nation to consider to make better choices when using global food and energy resources. B) for a person living in a developing country to see how much of the world?s resources are left for him/her. C) in converting human foods? meat biomass to plant biomass. D) in making predictions about the global carrying capacity of humans. E) in determining which nations produce the least amount of carbon dioxide from the burning of fossil fuels.
In humans, structures that show developmental homology with other chordates are
A. the lungs and vertebrae. B. the eyes and nostrils. C. gill ridges and a bony tail. D. fore and hindlimbs.