due to cuticle and protein keratin
Keratin the same thing your fingernails are made of!
It doesnt matter how long they are, their still fingernails no matter what.
Depends on the nail. Toenail or fingernail?
No, fingernails are not digestible by the human body. They are made of a tough protein called keratin that cannot be broken down by our digestive system.
Calcium
Yes, both a cockroach's exoskeleton (skin) and human fingernails are made of a protein called chitin. However, the composition and structure of chitin in a cockroach's exoskeleton are different from the keratin in human fingernails.
No, fingernails do not digest in the human body. They are made of a protein called keratin, which is not broken down by the digestive system. Instead, fingernails grow continuously and are eventually pushed out as new cells replace the old ones.
Human Brains. With fingernails.
20- 10 fingernails/10 toenails
Fingernails & hair. The cornea. Tendons.
Human fingernails can be any conceivable length. The longest fingernails on record are 4.8 feet for men, and 3 feet for women. It is most common to keep fingernails short, around one-eighth of an inch.
Both are waterproof