Living and dead cells.
Teeth do not belong because they are not made of the same protein (keratin) as skin, hair, and nails.
Skin, bones, hair, nails, and guts.
yes _________ Nails, Hair and Skin are all made up of the same protein, Keratin. Each has a pH of 4.5 to 5.5.
Keratin
Dead skin cells. Same as hair.
Hair is made of a protein called keratin, which is also found in nails and the outer layer of skin.
Nails are dead skin cells.
protein
There no nerves in the hair and nails
There no nerves in the hair and nails
skin.melanin is the pigment for skin colour and keratin gives elasticity to the skin. keratin is also in hair and fingernail...it is in basicaly every part of your body because it is mainly protein.
Teeth. Skin, hair and nails are all formed from a layer called the dermis.