<p>I'm a public health major and I took AP Bio in high school and got a 3 on the exam, which is passing. I'm currently taking Bio 1b right now, but I don't think I'm going to be able to get the minimum grade of a B- (you need a B- in bio 1b to declare public health), which means that I'm going to have to retake it. BUT, since I already got a 3 on the AP Bio exam, does that exempt me from the Bio 1b requirement, or should I retake the class? The thing is, I don't want to pay another thousand dollars to take a class I've already taken.</p>