Taking anatomy and physiology is not necessary to do well on the bio section. However, I really do recommend that you relearn ALL the physiology that was covered in your general biology classes. All the systems (nervous, endocrine, cardiovascular, reproductive, ect). They are very important for the bio section. It would also be very beneficial for you to read a anatomy and physiology study guide such as cliffnotes or barrons. Good luck!!!🙂