Master AP Biology

AP Biology is one of the most content-heavy AP exams, covering everything from molecular genetics to ecosystem ecology. APFlash focuses on the reasoning skills the exam actually tests - interpreting experimental data, applying concepts to novel scenarios, and connecting ideas across units - not just vocabulary recall.

All 200 questions are organized across the 8 official College Board units, so you can target weak areas or work through everything systematically. Your performance is tracked by unit so you know exactly where to focus.