112.2  page 544-545

An acidophile thrives under conditions of low

  Obligate anaerobes have enzymes such as superoxide dismutase to protect them from the damaging effects of oxygen.    

Which of the following groups of bacteria lives in environments similar to those that may have existed on the early Earth?

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

  The only effective way to store bacterial cultures for short periods of time is to arrest their metabolism by freezing.  

MacConkey agar plates represent __________ medium.

Standard methods of sterilization are not effective in inactivating

Microbes growing in boiling hot mineral springs are generally

For adjacent pay grades with the following characteristics: Pay Grade 1: Midpoint = $32,000, Range spread = 30% Pay Grade 2: Midpoint = $48,000, Range spread = 50% Pay Grade 3: Midpoint = $56,000, Range spread = 60% Calculate: The minimum and maximum for each pay grade (round to the nearest whole number). Does this pay structure seem more egalitarian or more hierarchical? Explain your answer.