Answer key of Bihar Board 12th Biology Exam 2018
| 1. | B | 13. | C | 25. | D |
| 2. | B | 14. | D | 26. | B |
| 3. | C | 15. | C | 27. | C |
| 4. | A | 16. | A | 28. | C |
| 5. | A | 17. | B | 29. | A |
| 6. | A | 18. | D | 30. | A |
| 7. | B | 19. | C | 31. | A |
| 8. | D | 20. | B | 32. | A |
| 9. | A | 21. | B | 33. | A |
| 10. | B | 22. | B | 34. | C |
| 11. | B | 23. | C | 35. | D |
| 12. | B | 24. | B |
Answer key of Bihar Board 12th Biology Exam 2018 
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