A Cell Wall is the outer non-living layer only found in plant cells. It is flexiable to let thing in and out.
It is composed entirely of living cells.
water
No, they cannot be blocked. The Ozone layer can only block the UV rays of the sun.
In the living dermis layer of the skin, by normal cell division like other cells. In the dead epidermis surface layer of the skin, they don't as the cells are already dead (they killed themselves before becoming part of the epidermis).
batony
Stratum basale is the layer of skin that has living and dividing cells.
The dermis is the layer of skin that contains only living cells. The epidermis contains both living and dead cells.
stratum granulosum, stratum spinosum, and stratum basale.
No the outer layer of the skin is not made of living cells. it is made of dead cells.
A Cell Wall is the outer non-living layer only found in plant cells. It is flexiable to let thing in and out.
It is composed entirely of living cells.
Tunica
water
yes the cell membrane is the protective layer around cells that's underneath the cell wall.
Cell wall
Cork cells form a protective layer around plant stems.