A review of past IBOs
Please note: All IBO examination questions are published under the Creative Commons license CC BY-NC-SA (Attribution-NonCommercial-ShareAlike). The exam papers can be used freely for educational purposes as long as IBO (International Biology Olympiad e.V.) is credited and new creations are licensed under identical terms. No commercial use is allowed.
A graphical summary of IBO participation over the years can be downloaded here.
Overview of past IBO hosts
Results, exam papers, websites
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2021: IBO Challenge - A Substitute for the 32nd IBO in Lisbon, Portugal
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2020: IBO Challenge - A Substitute for the 31st IBO in Nagasaki, Japan
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