Students register for the 2025 competition individually after their school has registered. You will need a teacher at your school who can supervise you writing the exam on Wednesday, April 9. 

The CBO exam will require detailed biological knowledge and will require you to apply your knowledge in unfamiliar contexts. Campbell Biology remains an excellent text to help you study. 

Join our Facebook group to meet others involved with the Olympiad

Join our Instagram group too to see pictures from previous camps and IBO.  Canadian_Biology_Olympiad