If you need to know it, it?s in this book! This revised 2013 edition of Cracking the AP Biology Exam includes: ? 2 full-length practice tests with detailed explanations ? An overview of the subject matter changes made to the 2013 AP Biology Exam ? A comprehensive biology test topic review, covering everything from photosynthesis to genetics to evolution ? Strategies for the new grid-in and short free-response question types ? Review questions and key term lists in every chapter to help you practice ? Detailed guidance on how to write a topical, cohesive, point-winning essay