ANSWERS: 3
  • They are made of a tough protein named keratin. http://en.wikipedia.org/wiki/Keratin
  • Dried snot.
  • G'day Anonymous, Thank you for your question. They are made out of a tough protein called keratin. I have attached sources for your reference. Regards Wikipedia Nails http://en.wikipedia.org/wiki/Nail_(anatomy) Answers.com http://www.answers.com/fingernails&r=67 CNN Health http://edition.cnn.com/HEALTH/library/WO/00020.html

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