Growth and Nutrition of Bacteria
An organism that expends energy to grow in a habitat with a low water activity in order to maintain internal solute concentrations to retain water is

aerotolerant anaerobe
acidophile
alkalophile
osmotolerant

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Growth and Nutrition of Bacteria
Generation time is

time required for the population to double
time required for the initial adjustment
both (a) and (c)
obtained by expression t/n, where t = time interval, n = number of generation

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