rozan310
rozan310
17-01-2018
Biology
contestada
how is hair produced and how does it grow
Respuesta :
articunojaz
articunojaz
17-01-2018
Hair is made of a tough protein call Keratin. The hair follicle anchors each hair into the skin. The hair bulb forms the base of the hair follicle. Later on the hair starts to grow taller and taller, thicker and stronger.
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