To anybody who's had any experience in a business frat—or just rushing them—exactly how selective are they? Is there anything I could do to strengthen my chances/prepare myself before rushing begins?

called admissions last week and they said they were still active for the waitlist

Registered for classes, I was waitlisted and there are about 9 people on there now. When I got waitlisted it was like 5

Is the waitlist random? Or first come first serve ? Pls help

I haven't taken bio 1509 + don't have AP credit but YES let me enroll in 1510? Will I be kicked out of the class, or is it ok? Is it not a strict pre-req?