Hair & Scalp Sciences第 59 / 100 题
Which layer of the hair contains the pigment (melanin) that gives hair its color?
a.Cortex
b.Cuticle
c.Medulla
d.Follicle
解析
The cortex contains melanin granules that determine natural hair color, as well as the bonds responsible for strength and elasticity. Chemical color and perm services work primarily within the cortex.
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