Which of the following best describes hair? Hair is made of mostly tightly packed living cells.
Hair does not help control body temperature.
Hair growth occurs in the hair follicle.
Hair grows at 2.5mm a month.
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I say 3, hair growth occars in the hair follicle

Explanation:

hair grows 12.7 mm each month, hair does help control body tempature and hair is not made up of tightly packed living cells, the cells dived in that case it is not packed tightly so my conclushionis that  hair growth occars in the hair follicle!

(hope this helps)