In comparing the pathologic changes to the lungs caused by f…

In comparing the pathologic changes to the lungs caused by freshwater versus saltwater, which of the following can be stated? A. Saltwater causes more damage. B. Freshwater causes more damage. C. Both cause identical pathologic changes. D. Cold water of either type causes more damage than warm water of either type.

  Dr. Burney was trying to determine the cause of a mysterio…

  Dr. Burney was trying to determine the cause of a mysterious epidemic affecting fish in the Gulf of Mexico.  He came up with an initial question asking “why are mass numbers of fish in certain areas of the Gulf of Mexico becoming ill and dying?”  His initial proposal for this question was that “deaths were caused by infection from a single-celled protist”… this tentative explanation is considered a(n) _________.