Question

How our hair is produced and nails become grow

Answer 1

Hii Friend here is ur answer

Several factors affect the growth of your hair and nails. Keratin is a protein made by cells in your skin that make upyour hair and nails. As keratin cells naturally push upward through the skin, they die and then harden, turning into your hair or nails.

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Answer 2

keratin (a protein) present in our body grows out and become dead which leads to its hardened nature.

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