★ Cosmetology Quiz
The range of numbers used in the ph scale is _________.
A. 0 to 5
B. 0 to 10
C. 0 to 7
D. 0 to 14
Select your answer:
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Immunology: T cell Development › ViewInvolution of the thymus
A. the thymus steadily decreases with age
B. the thymus steadily increases with age
Principles of Microbiology › View
Which method will kill microorganisms around our homes?
A. Moisture
B. pH number
C. Oxygen available
D. 80 degrees temperature