_________________ provides an acidic coating to protect the epidermis against penetration from chemicals and microorganisms;it also minimizes loss of water and plasma proteins.

Acidic Coating

A type of material coating that has a low pH, often used to protect surfaces or enhance the performance of certain products.

Epidermis

The outermost layer of the skin, which acts as a barrier to protect the body from the external environment.

Plasma Proteins

Proteins found in blood plasma that play roles in clotting, defense mechanisms, and transportation of substances in the blood.