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.
The question of how many Old Order Amish (those that drive the horse-and-buggy, speak Pennsylvania German, dress Plain, and adhere to the Dordrecht Confession) groups there are remains a difficult one to answer, for a number of reasons.