The fruit fly, Drosophila melanogaster, is the most obvious organism used in teaching. It is often used for students to learn Mendelian genetics. E. coli, yeast, and Rana pipiens are also popular model organisms in biology education.
Question: Who are the Amish, and what are their beliefs?. Answer: The Amish are a group of people who follow the teachings of Jacob Ammann, a 17th-century citizen of Switzerland.
We generalize somewhat in the inclusion of several of the plain sects in this account, although specifically we ought to say that the Amish do so and so; or, the Mennonites, or whatever they may be. Generally it must be taken to mean that the extremists in this account are the Amish.