Honestly, I thought the bio section was by far the easiest. I was anticipating complex questions about cellular processes and nitty gritty details pertaining to the human body. This just wasn't the case. The bulk of this section was about general cell concepts, reproduction, animal classifications (kindom, phylums, etc), environmental questions, and some anatomy/physiology. Maybe a tad bit of basic genetics on top. It really wasn't too bad. I would study much more for chemistry than bio. Much of it was intuitive and easy to guess if the exact answer wasn't certainly known. Good luck.