★ Microbial Growth Quiz
Which of the following is the reason jams and dried meats often do not require refrigeration to prevent spoilage?
A. low pH
B. toxic alkaline chemicals
C. naturally occurring antibiotics
D. low water activity
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Which is the following the main requirement(s) for the bacteria to grow ?
A. Nutrient requirement
B. Oxygen requirement
C. Oxygen and nutrient requirement
D. Physical and chemical requirement
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