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      Some chemical or antimicrobial agents inactivate prions.    .          

An epidemiologist is investigating a new disease and observes what appear to be bacteria inside tissue cells in clinical samples from victims. The scientist wants to try to isolate the bacteria in the lab. What culture conditions are most likely to be successful?

  An aquatic microbe that can grow only at the surface of the water is probably which of the following?

  The decimal reduction time is not the time required to kill all the microbes in a given sample.  

An acidophile thrives under conditions of low

  Nitrogen fixation is a process that occurs in all bacteria.  

Nitrogen is a growth limiting nutrient for many organisms because

Some viruses are inactivated by the same chemical or physical agents that damage cytoplasmic membranes.  

A capnophile is a microorganism that thrives in conditions of high __________.