USABO - USA Biology Olympiad Practice Test

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USABO Practice Test Video Answers

1. B  

2. C  

3. B  

4. B  

5. B  

6. B  

7. B  

8. B  

9. A  

10. A  

11. B  

12. A  

13. B  

14. B  

15. A  

16. A  

17. A  

18. A  

19. A  

20. A  

21. A  

22. A  

23. A  

24. A  

25. A  

26. A  

27. A  

28. A  

29. A  

30. A  

31. A  

32. A  

33. A  

34. A  

35. A  

USABO: upcoming dates and official changes

Facts verified Oct 17, 2026 against USA Biology Olympiad (USABO), run by the Center for Excellence in Education (CEE) through the USABO Teacher Resource Cen. Dates that have passed are removed automatically.

Facts verified Oct 17, 2026 against USA Biology Olympiad (USABO), run by the Center for Excellence in Education (CEE) through the USABO Teacher Resource Cen. Dates that have passed are removed automatically.

USABO Exam at a Glance

Facts verified Oct 17, 2026 against USA Biology Olympiad (USABO), run by the Center for Excellence in Education (CEE) through the USABO Teacher Resource Cen. Dates that have passed are removed automatically.

For a fuller set of questions on this topic, see our usabo past exams resource.

USABO Practice Test Questions

Prepare for the USABO - USA Biology Olympiad exam with our free practice test modules. Each quiz covers key topics to help you pass on your first try.

USABO Anatomy and Physiology
USABO Exam Questions covering Anatomy and Physiology. Master USABO Test concepts for certification prep.
USABO Genetics and Cell Biology
Free USABO Practice Test featuring Genetics and Cell Biology. Improve your USABO Exam score with mock test prep.
USABO Immunology and Disease
USABO Mock Exam on Immunology and Disease. USABO Study Guide questions to pass on your first try.
USABO - USA Biology Olympiad Animal Physio...
USABO Test Prep for - USA Biology Olympiad Animal Physiology and Homeostasis. Practice USABO Quiz questions and boost your score.
USABO - USA Biology Olympiad Biosystematic...
USABO Questions and Answers on - USA Biology Olympiad Biosystematics and Taxonomy. Free USABO practice for exam readiness.
USABO - USA Biology Olympiad Cellular Resp...
USABO Mock Test covering - USA Biology Olympiad Cellular Respiration and Metabolism. Online USABO Test practice with instant feedback.
USABO - USA Biology Olympiad Classical and...
Free USABO Quiz on - USA Biology Olympiad Classical and Mendelian Genetics. USABO Exam prep questions with detailed explanations.
USABO - USA Biology Olympiad Evolution and...
USABO Practice Questions for - USA Biology Olympiad Evolution and Phylogenetics. Build confidence for your USABO certification exam.
USABO - USA Biology Olympiad Molecular Gen...
USABO Test Online for - USA Biology Olympiad Molecular Genetics and DNA. Free practice with instant results and feedback.
USABO - USA Biology Olympiad Neurobiology ...
USABO Study Material on - USA Biology Olympiad Neurobiology and Sensory Systems. Prepare effectively with real exam-style questions.
USABO - USA Biology Olympiad Plant Anatomy...
Free USABO Test covering - USA Biology Olympiad Plant Anatomy and Transport. Practice and track your USABO exam readiness.
USABO - USA Biology Olympiad Population Ec...
USABO Exam Questions covering - USA Biology Olympiad Population Ecology and Dynamics. Master USABO Test concepts for certification prep.

How long is the USABO?

The USABO Open Exam is a 50-minute online multiple-choice exam. (Verified Oct 17, 2026 against USA Biology Olympiad (USABO), run by the Center for Excellence in Education (CEE) through the USABO Teacher Resource Cen.)

How much does the USABO cost?

The USA Biology Olympiad charges a flat $125 registration fee per school, which covers the school's participating students. (Verified Oct 17, 2026 against USA Biology Olympiad (USABO), run by the Center for Excellence in Education (CEE) through the USABO Teacher Resource Cen.)
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