A rhino's horn is made up of a material called keratin. It is the same substance that makes up your hair and nails.
The rattle is made up of keratin - the same substance that makes up the outer layer of skin, hair, nails, etc.
hair cellls
Protein makes up enzymes, hair, and nails.
Protein is the main comopound that makes up your skin, hair, and nails. You can find mostly protein in skin, nails, and hair.
hard hair or keratin which is made of the same substance as hair
Your skin, hair, muscles and organs are mostly made up of protein.
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.
Its horn is made up of a material called Keratin, our nails are also made up of this substance only.
Nails are NOT made out of cartilage. Nails are made out of keratin, the same structural component that makes up hair. Both keratin and cartilage are types of structural proteins, but they are not related.
Nails and hairhair and or nail
Mainly keratin which is a structural protein. It is also made up of other vitamins and proteins. Finger and toe nails are also made from keratin.