You should pick based upon which you would enjoy more. Personally, I think that Anatomy and Physiology would be more enjoyable, especially if you are thinking about going into nursing. There are many, many paths into nursing, ranging from a community college RN, to a local state college or local private college BSN, to flagship state U BSNs and even Ivy league BSNs. You don’t have to choose Physics over Anatomy and Physiology just because you think it would impress a nursing school.