Cracking the AP Biology exam 2020, premium edition, provides students with comprehensive topic reviews of all AP Biology subjects, from Photosynthesis to genetics to evolution. It also includes strategies for all AP Biology question types, including grid-in and short free-response questions, and contains detailed guidance on how to write a topical, cohesive, point-winning essay. This premium edition includes 5 full-length practice tests (4 in the book and 1 Online) for the most practice possible.