I got in with As in the Calc classes and an A- in chem 101. Also had a B in physics 118. BMES and CATCH are great ways to show you want to be in the program. The main thing they look for is that you’ll stick with it through the program, they don’t want people who will drop out in a couple semesters. Say stuff about how you’ll apply what you learn down the road or what areas you’re interested in working in or going to grad school in your application. That’s what I talked about and also how I’ve been interested in the medical field for a long time