Not Studying for Senior AP Tests

I will be attending UPenn in the fall, and it looks like I will only receive credit for the BC Calc exam and not the Bio and Gov exams which are also classes I am currently taking. I’ve kept up my grades this semester, but if I only study for BC Calc and wing the other two because I won’t get credit for them, could Penn rescind me or at least become aggravated by this? The reason I’m asking is that my friend told me UC schools can rescind for bad AP scores.

Colleges don’t care about AP scores, especially after you’ve been admitted