how long does it take to grow a new layer of skin
Depends. It takes about a month for an entire new layer of skin to grow back. Your skin has multiple layers though, so if the top layer is destroyed, it will be replaced by the second layer, and so forth.
It takes about a month for a news layer to grow back
So that it can grow as it will have just grown out of it's old skin.
Nails grow on the nail bed, which is part of the deeper layer of the skin called the dermis. The visible part of the nail is actually composed of dead cells that have been pushed out from underneath the skin.
Skin that they regularly shed a layer of as they grow
Usually. You will get new layers throughout your life. You peel, You grow a new layer!
A lizard forms a new layer of skin under the existing layer BEFORE it sheds. The lizard often eats the old skin, as it's full of nutrients.
The outer layer of skin does not grow with the snake and periodically the snake must shed its older skin so as to be able to grow. The skin does not simply fall off, it must be removed by the snake.
2week's
Cobras begin their lives as eggs. Once they hatch, they grow very quickly so they get big enough to avoid predators. Their fangs grow to be as long as one-half inch and they are olive, black, or brown, which aids in camouflage.
The dermis is the vascular layer of your skin.
The epidermis forms from key specialised stem cells found deeper under the outer layer. These stem cells are found in or on top of the dermis and grow into the epidermis. These cells in grow in layers and as the layers age, the cells undergo a process called 'keratinisation' almost completely changing into the protein keratin. The last part of the cell that is converted is the nucleus.