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SL Biology Grade Boundaries
SL Biology
Minimum score needed for each grade across past sessions.
How to read this chart
Each point is the typical published boundary for that exam session. Hover or tap a point to see the timezone range.
Read the plain-language results guide →| SL Biology | |||||||
|---|---|---|---|---|---|---|---|
| Exam sessionSession | Minimum mark for gradeMinimum mark | ||||||
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | |
| N25 TZ3 | 0 | 14 | 24 | 39 | 52 | 64 | 77 |
| N25 TZ1 | 0 | 14 | 25 | 40 | 52 | 66 | 78 |
| M25 TZ3 | 0 | 11 | 21 | 33 | 46 | 59 | 72 |
| M25 TZ2 | 0 | 13 | 24 | 36 | 48 | 60 | 72 |
| M25 TZ1 | 0 | 13 | 26 | 39 | 52 | 64 | 77 |