Don't forget that the prereqs are changing for next Spring. They're replacing diet and nutrition for Medical terminology so if you want to reapply for Spring, you'll have to take medical terminology if you haven't already.
The Science section of the TEAS has a lot of Anatomy & Physiology questions. I would HIGHLY recommend that you take AP before taking the teas and if you can't, then you will probably have a hard time on it unless you study hard.