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By what cellular process does hair grow back

User Clark Pan
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Answer:

The hair growth cycle consists of three phases: anagen, catagen, and telogen. Anagen, the growth phase, lasts between 3 and 10 years. During this phase, rapid cell division occurs in the hair bulb and dermal papilla. In addition, new hairs begin to protrude from the scalp.

Step-by-step explanation:

User Vandus
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