Studying for Biology and Chem is almost impossible unless you get a superb private tutor who is an outstanding teacher. These are topics that are not “self-study” friendly, but calc is a bit (Coursera has a Calc I class, and coupled with an Art of Problem Solving Book, I am working through calculus on my own). Physics also is a good self-study option.
Do not take AP Biology and Physics together. They are not in any way related, and just not worth the effort together.
However, take Physics.
AP Physics C will make you succeed in your Calculus class and vice versa, because there is a tad bit of calculus in Physics C (derivatives, mostly). When you use the math in applications, you will score much better in physics. I think they teach (at least in my school) the rudiments of calculus in Physics C for the first few weeks, so you will have a head-start over your peers who will be facing the material a year later than you. (Good Thing)
Self-studying physics over the summer before class starts is a better combination than studying either biology or chem or both… and if you do so, you will struggle less in class when you arrive on the scene than you would have without studying.
If possible, take chemistry and physics. I doubled up on both the honors classes, and a lot of the topics were related, so I found things easier. Doing the same with AP’s will only benefit you. I am taking AP Chem and Physics C (Mechanics) this upcoming year, also.
AP Biology can be taken senior year. I would recommend putting AP Statistics on hold until senior year as well as first of all, it will free time in your schedule for Chem and Physics, but also, AP Biology has a few Statistics concepts as well. (My friends who took AP Biology went to our Stats teacher for help when things came to testing hypothesis).
Statistics is not easy, but not killer hard. Do not underestimate it.
Again, my two cents. Take Physics and Chem (and prepare for physics during the summer).
What do you think of this suggestion? And what does the community think?