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2. Natural nail is a hard protective plate composed mainly of​

Sagot :

Answer:

keratin

A natural nail, also known as onyx (AHN-iks), is the hard protective plate composed mainly of keratin, the fiber-shaped protein found in skin and hair. The keratin in natural nails is harder than the keratin in skin or hair.

Answer:

keratin

A natural nail, also known as onyx (AHN-iks), is the hard protective plate composed mainly of keratin, the same fibrous protein found in skin and hair. The keratin in natural nails is harder than the keratin in skin or hair. The natural nail is located at the end of the finger or toe.