Frequently Asked Questions

Q: Where is the 2018 International Biology Olympiad being held?
A: In Tehran, Iran from July 15 - 22, 2018. You can explore their website at

Q: What biology knowledge do I need to know to compete in the CBO and IBO?

A: The syllabus and rules for the IBO can be found at

Q: Is there a recommended textbook for the CBO and IBO?
A: The recommended textbook for the 2018 Biology Olympiad is: “Biology, 9th Edition” by Neil Campbell and Jane Reece.