A prerequisite is a specific course or subject that students must complete before taking another course at the next grade level. Please look at the university website for the list of academic courses. The prerequisites for each course are usually listed in the course description.
Suppose students are interested in taking a course with a prerequisite they do not meet. In that case, they should discuss the possibility of taking the course with the instructor and the academic unit offering the course or prove that they have completed a similar course in the same or a related subject.