Let’s say you want to take STAT 2120. In order to register for that course, you must have passed STAT 2110 or be currently registered for STAT 2110. 

Some more advanced courses might require you to complete a lower-level course before you can enroll. Others might require you to be in a certain major or class standing. Not all courses have prerequisites.

Browse the course catalog and review the course description before registering for classes.

The registration system checks to see if a prerequisite exists for a course and will not let you register unless you have completed the prerequisite. You will receive the following error message: "You have not met the prerequisites for this course. See the department for assistance." 

Not all prerequisites are coded in the registration system, though. Verify that you have met all the prerequisites prior to enrolling by reviewing the course catalog. If you are able to register for a course without having met the prerequisite, the department or faculty member will ask you to drop the class.

Yes. But if you drop or fail the first course, you will need to drop the second course.

The academic department that offers the course can explain prerequisites.