AP Bio and Anatomy Physiology together

I m rising junior and I am planning to take AP Bio as well as Anatomy physiology . I was wondering if the content overlap ?

There is an overlap, but it is not as big as you might hope.

The actual content in AP Bio is not necessarily terribly difficult to master- but the sheer volume of work can be challenging, and there is a lot of memorization in both classes. If that is a native strength of yours, super! but if not, you might want to re-consider doing both at the same time.