Start by creating a new file named âweb_server.jsâ. Insert the following code into the file and save it. To start the server, type the command shown below. If everything works properly, you will see a message that the server is listening.
Epithelia are classified on the basis of the number of cell layers and the shape of the cells in the surface layer. * If there is only one layer of cells in the epithelium, it is designated simple. * If there are two or more layers of cells, it is termed stratified.* Cells in the surface layer are, as a rule, described according to their height as squamous (scale-or plate-like), cuboidal or columnar.Examine each of the basic types of cells so that you get an understanding for how the layers are organized and how they are named.pithelia are classified on the basis of the number of cell layers and the shape of the cells in the surface layer. * If there is only one layer of cells in the epithelium, it is designated simple. * If there are two or more layers of cells, it is termed stratified.
Within each of these broad categories, there are specific tissue types. Specific epithelial tissues are characterized by their cell shape and how many cell layers thick they are. There are many different specific connective tissues, but the one thing they have in common is that they connect things in our body.he easiest way to describe an epithelial tissue is to say that it covers something; typically an organ. The skin of our bodies is just one, big piece of epithelial tissue! All epithelial tissues share one thing in common: a basement membrane. A membrane is a very thin layer of tissue.