Q:

What is the fibrous protein in our skin that protects it from abrasion

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What is the fi brous protein in our skin that protects it from abrasion?


  1. melanin
  2. keratin
  3. sebum
  4. elastin

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B:the outermost layer of the epidermis (stratum corneum) is composed

of dead cells fi lled with keratin. This layer is harmlessly rubbed off

(abrades) as the body comes into contact with objects outside the body.

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