Biology by Bradford
IB & AP Biology multiple-choice quizzes that mark themselves.
Free IB and AP Biology retrieval practice, topic by topic. Students pick an answer and the quiz marks it on the spot: the right option lights green, wrong ones flag pink, and a one-line explanation opens underneath. Open one and start.
Theme
Level
SL / HL
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How to use: open a quiz and work through it: each answer is marked instantly, with the reasoning shown underneath, and a running score up top. Great as a starter, a plenary, or self-paced revision. No login, nothing to install.