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Of which tissue nails, hoofs and horns are made of
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- Cutide
- Chitin
- Keratin
- Tunicin
Correct Option: C
Keratin is a fibrous protein making up most cells found in our nails and hair and the epidermis layer of our skin. It also makes up fish scales and crustacean shells, bird feathers and beaks, and animal horns and hooves.