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The outer most layer of the hair shaft is the ______
A. medulla
B. pith
C. cortex
D. cuticle
Select your answer:
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Nail Enhancement › ViewWhich of these products is used to increase adhesion of UV or LED gels to the natural nail plate?
A. Nail primer
B. Nail adhesive
C. Bonding gel
D. Nail cleanser
Microbial Growth › View
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