The maintenance is done with the help of sweat. The sweat is produced in skin glands.
Cholooplast helps to maintain the cells structure.
Sweat glands
Thermal
Sweat helps maintain your body temperature, Whenever your sweat evaporates, it cools you down.
The attraction between negative and positive protons help to maintain and atom's structure.
protein
YES!
thyroid
Malpighian tubules Malpighian tubules
temperature ... and hydration
sweating
The outer layer of the skin is the epidermis. The term epidermis means on top of the dermis. Actually the dermis is what gives color to the skin. The epidermis is a dry layer but it does give a waterproof coating.