Interfaces in Object Oriented Programming Languages. An interface is a programming structure/syntax that allows the computer to enforce certain properties on an object (class). For example, say we have a car class and a scooter class and a truck class. Each of these three classes should have a start_engine() action.
The epidermis is the very outer layer of the skin that provides protection from bacteria (thanks to it's pH level), becoming overloaded with water (it's waterproof) and from heat loss. It has four of five distinct layers to achieve this.
The lower epidermis of a leaf serves as protection like skin, and also helps retain moisture. 1/11/12: I'm studying this subject now and I believe from what I learned that th â¦ e UPPER epidermis reduces water loss and protects the cell with the cuticle (a thin waxy later that protects the leaf from fungi and bacteria).