Cells, genetics, evolution, ecology, all the systems.
Session settings
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You can still adjust zoom mid-test with A− / A+.
Real Test
Full-length test
60 questions, 90 min countdown. Same length and pacing as the real exam.
Best on desktop - a computer is recommended for full-length tests.
Warmup
Quick practice
Random questions across all topics. Pick a difficulty to dial up the challenge.
Targeted
Practice by topic
Drill one skill until it stops scaring you.
Smart Mix
AI smart quiz
Pulls real questions from the AP Biology bank by topic + difficulty, and tops up with fresh AI when the bank runs short.
AI · Fresh
Endless AI questions
Brand-new questions written by AI every time — no repeats. Great when you've drilled the bank dry.
Stuck? Ask the AI tutor.
Adaptive help that explains your mistakes step-by-step.
Practice AP Biology free response
4 rubric-graded prompts. AI scores against the official rubric.
Exam blueprint
60 MCQ + 6 FRQ
Unit 1Chemistry of Life8–11%
Unit 2Cell Structure and Function10–13%
Unit 3Cellular Energetics12–16%
Unit 4Cell Communication and Cell Cycle10–15%
Unit 5Heredity8–11%
Unit 6Gene Expression and Regulation12–16%
Unit 7Natural Selection13–20%
Unit 8Ecology10–15%
Source: College Board Course & Exam Descriptions, 2025–26.