Over the years, I have gathered hundreds of test questions. They were either written by me or borrowed from another teacher. I have complied them into several practice tests. I have tried to label each test so that you will have an idea of what each test covers before you go to the site.
Please remember that these AP biology tests are PRACTICE tests and may not be in the exact format (ie. length, structure, difficulty) as the AP exam. But my students in the past have found them helpful. I would like to take a brief moment to thank the authors of Reviewing Biology from which many practice questions come from.