Fingernails are made of keratin
http://www.answers.com/keratin
finger nails are made up of the same stuff that's in your hair its a substance called keratin which is an extremely hard protein.. This same substance is also found in skin, hooves, horns and teeth.
Keratin
Alpha-Keratin
Yes.
Rhinoceros horns are made out of solid keratin. Keratin is the same material that fingernails and hair are made of. Also like fingernails, the horn can grow back if it is cut.
Fingernails are made of a protein called keratin and are considered non-living material, as they do not contain cells or have the ability to grow or repair themselves.
Walruses dont have trunks. There tusk is made from dendrite, the same material as your fingernails
Rhinos do not have tusks, but their horns are made from compacted hair and keratin (the same material as fingernails).
acrylic Acrylic nails are generally safe, but can increase the risk of infection under the nail.
Fingernails are biotic, meaning they are derived from living organisms (the cells in the nail matrix), but once they are fully formed, they are considered to be made of abiotic material (keratin).
I believe that exoskeletons are made of the same material as our own fingernails and hair, just compacted together.
snails shells can be made of many things like... -Sodium Carbonate -Acid -Potassium Chloride -Magnesium Oxide -Zinc pellets -cod nuggets hope this helps!!
Snail shells are made of the same material that fingernails are made of. Fingernails are made of tough protein called "keratin".