1. This method can be used to sterilize a liquid media without harmingheat labile ingredients.
a. autoclaving
b. pasteurization
c. freezing
d. cold filtration
e. addition of ethylene oxide to the media.
2. The cell density of population of microbes expands six-thousandfold. approximately how many times did the population double?
a. 9
b. 10
c. 12
d. 14
e. 16