Protein makes up enzymes, hair, and nails.
Keratin is the protein that makes up hair. This protein also makes fingernails.
Your hair is composed of the protein keratin, which is the same protein that makes up fingernails, feathers, claws and hooves.
Fingernails are made from a protein called "Keratin".
The horns of a rhinoceros are made of keratin, the same type of protein that makes up hair and fingernails.
Hair is made out of Keratin, the same substances that make up your fingernails.
Fingernails and hair not completely sure but i know fingernails is right
Hair and fingernails are made up of a type protein called keratin. This structural element is also a part of the make up of the outer layer of human skin.
The skin, the hair, and your fingernails!:)skin,hair,and nails
The same things as hair.(as far as I kno)
No. Carotene is a pigment. Beta-carotene is a form of Vitamin A. Keratin is a protein which makes up hair and fingernails. http://en.wikipedia.org/wiki/Keratin
I believe that exoskeletons are made of the same material as our own fingernails and hair, just compacted together.