This best selling AP Biology study guide includes: Two full-length exams that follow the content and style of the new AP Biology exam All test questions answered and explained An extensive review covering all AP test topics Hundreds of additional multiple-choice and free-response practice questions with answer explanations This manual can be purchased alone or with an optional CD-ROM that includes two additional practice tests with answers and automatic scoring. BONUS ONLINE PRACTICE TEST : Students who purchase this book or package will also get FREE access to one additional full-length online AP Biology test with all questions answered and explained.