This pathway represents one example of how you might complete all the requirements for your degree in an order that makes sense given prerequisites. It is meant to give you a general sense of what your education will look like.
Your own unique situation and a number of other factors may mean your actual pathway is different. Perhaps you'll need an extra math or chemistry course. You'll want to work closely with an advisor to develop a pathway that's customized for you.
In the meantime, use this example as a starting point for choosing classes or discussing your plans with an advisor. Your advisor is your best resource when it comes to figuring out how to fit all the courses you need, in the right sequence, into your personal academic plan.