Freshwater is most likely to be polluted
A) by oil spills in ocean water moving inland.
B) as a result of eutrophication.
C) by contaminants from aquifers moving to surface waters.
D) from organic solvents and farming chemicals in surface water runoff.
E) by radioactive waste seeping from nuclear reactors.
D
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Helicobacter pylori is responsible for ________.
A. pneumonia B. dysentery C. cholera D. peptic ulcer disease
The coding regions of a gene are known as ________.
Fill in the blank(s) with the appropriate word(s).
Which of the following is a reason we should care about the extinction of species and work to conserve biological diversity?
A) moral responsibility B) economic benefits C) value of species as indicators of environmental quality D) value of species in maintaining ecosystem function E) all of the above
Treatment and control of anthrax includes
A) Proper disposal of animals that have died from anthrax. B) Use of antimicrobics, such as ciprofloxacin for active cases. C) Vaccination of livestock. D) Toxoid for military and those with occupational exposure. E) All of these choices are correct