Solid advice above, but is the Micro just a lab? If so, I don't think it'd be worthwhile to take it - the lectures are going to help you more than the labs will. I'd put Neurobio & Immuno as the top two if Micro is just a lab and no lecture. If it's a lecture, then Neuro & Micro. But if you're able to take all three without causing your GPA to fall.... 😀 I think that may help you the most + also show you how dental school is like, cause it's balancing like 4-5 classes like those along with pre-clinical labs and projects.