The Behavior Essay - So Many Topics; So Many Fields July 28, 2015 - Posted to How to: Essay writing tips Behavior occurs among animals, atoms and molecules, and people in all environments. An essay on behavior, therefore, is a common assignment in almost any type of coursework that may be taken. If you are a student of education, psychology, sociology, biology, chemistry, physics, business, economics, history, political science, and even the fine arts, there will come a time when you will study something related to behavior.