4. Which of the following methods is the simplest heat-related method to sterilize metal?
a. Incineration
b. Autoclaving
c. Direct flaming
d. Indirect heating

5. Boiling items in water for minutes will kill most vegetative bacteria and viruses.
a. 3-5
b. 5-6
c. 6-8
d. 10-15

6. The technique that combines freezing and drying to preserve microbes and other cells is
a. desiccation.
b. lyophilization.
c. pasteurization.
d. radiation.

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4 c Direct flaming Direct flaming is the simplest heatrelated method to steriliz... View the full answer