Question

Hair, nails, skin and muscles are made of

Answer 1

Answer:

Keratinocytes

Explanation: Keratinocytes (pronounced: ker-uh-TIH-no-sites) make keratin, a type of protein that's a basic component of hair, skin, and nails. Keratin in the skin's outer layer helps create a protective barrier.

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Answer 2

Answer:

Hair, nails, skin and muscles are made of epidermis.