For other uses, see API (disambiguation). In computer programming, an Application Programming Interface (API) is a set of subroutine definitions, protocols, and tools for building application software. In general terms, it is a set of clearly defined methods of communication between various software components.
7. epidermis. The epidermis cells (from the Greek ÎµÏÎ¯Î´ÎµÏÎ¼Î¯Î´Î±, meaning over-skin) is a single-layer of cells that covers the leaves, flowers, roots and stems of plants.It forms a boundary between the plant and the external environment.tomata are holes in the plant epidermis that are surrounded by two guard cells, which control the opening and closing of the aperture. These guard cells are in turn surrounded by subsidiary cells which provide a supporting role for the guard cells. Stomata begin as stomatal meristemoids.
There are many types of dermal tissues in plants. The epidermis is a layer of cells that is one cell thick. It serves the same purpose as the skin on a human. There is also th â¦ e cuticle, which is a waxy covering over the leaves of the plant. Its purpose is to prevent water loss and to resist infections.he protective outer layer of the plant. Everything needs skin, or at least some sort of a covering, for plants, it's a system of dermal tissue. Which covers the outside of a plant and it protects the plant in a variety of ways.