cortices. 1  1a (1) : the outer or superficial part of an organ or bodily structure (such as the kidney, adrenal gland, or cerebellum or a bone); especially : cerebral cortex (2) : the proteinaceous usually pigmented layer of a hair below the cuticleb : the outer part of some organisms (such as paramecia)
If a toenail has completely fallen off, it can take up to 18 months for it to grow back. A toenail can take longer to grow back if the nail bed has permanent damage. In some cases, old nails do not completely fall off, and they act as a protective...
Lizards can lose their tails, but not all lizards can grow them back.    Lizards that lose their tails may grow them back but the replacement tail is never as long or a â¦ s colorful as the original one. Replacement tails grow back in as little as three months or as long as two years.hen a lizard's tails fall off, it is their escape from a predator. It will take 3 months to 2 years to grow back, and it will have no pattern after it does so.