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Answer: Each hair shaft is made up of two or three layers: the cuticle, the cortex, and sometimes the medulla. The cuticle is the outermost layer. Made of flattened cells that overlap like the tiles on a terra-cotta roof, the cuticle protects the inside of the hair shaft from damage.
Explanation:
found "https://www.exploratorium.edu/exploring/hair/hair_2.html#:~:text=Each%20hair%20shaft%20is%20made,the%20hair%20shaft%20from%20damage."
I hope this helped!
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- Zack Slocum
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