The red-brown pigment in hair is called
A) melanin.
B) phaeomelanin.
C) chlorophyll.
D) β-carotene.
Correct Answer:
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Q97: Colognes are
A)similar to aftershaves.
B)diluted perfumes.
C)perfumes derived from
Q98: A commonly used abrasive that is NOT
Q99: The substance left out of most hypoallergenic
Q100: Which substance strengthens tooth enamel?
A)fluoride
B)abrasive
C)plaque
D)protein
Q101: People with brunette hair have lots of
A)melanin.
B)phaeomelanin.
C)chlorophyll.
D)none
Q103: The substances in hair sprays and mousses
Q104: Hair is most efficiently "permanently" dyed by
A)soaking
Q105: Wet hair is softer because water disrupts
A)disulfide
Q106: Minoxidil was first used as a drug
Q107: What chemical compound is used to bleach
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