Barron's AP Biology, 5th edition offers extensive review covering all test topics as well as two full-length exams, hundreds of additional multiple-choice and free-response practice questions with answer explanations, and must have test-taking strategies and tips for test day. This eBook version contains hundreds of hyperlinks that can be used to help you navigate through content, bring you to more helpful resources, and allow you to click between all questions and their answers explained. It also contains a link that will bring you to a new full-length online practice exam!