Fully Updated for the May 2025 AP Exam! Teacher-Recommended and AP Expert-Reviewed. Ready to succeed in your AP Biology course and ace the exam? This 5 Steps to a 5 guide is more than a review guide -- it's a system that has helped thousands of students walk into test day feeling prepared and confident. Everything you Need for a 5: Practice with 3 full-length sample tests that align with the latest format Brush up with hundreds of practice questions Review the most important topics covered during the AP school year Trust the Experts: All 5 Steps authors are leading AP educators who are intimately familiar with the course and exam AP Biology exam strategies and tips you won't find anywhere else! Digital Solutions: Personalized study plans with daily goals and powerful analytics Digital flash cards for study on the go Interactive practice tests with answer explanations Available online and on mobile devices