Overview
Edexcel International A Level Biology is modular across WBI11–WBI16. The MarkScheme biology shell is live; marking uses phrase-level mark-scheme matching (Wave 1.5) — expect slightly softer precision than Maths method marks.
Quick answer
This section covers Quick answer — ranked by what Cambridge examiners return to most often in past papers.
| Question | Answer |
|---|---|
| Units | WBI11–WBI16 (modular + UMS cash-in) |
| Hub | IAL Biology |
| Mark | /mark?board=edexcel&subject=WBI11 |
| Cambridge overlap | Useful for ideas; wrong dialect for Pearson schemes |
Practise loop
For Cambridge Cambridge past paper revision, related STEM: [WPH11 Physics](/blog/edexcel-wph11-physics-unit-1-guide-2026) · [WCH11 Chemistry](/blog/edexcel-wch11-chemistry-unit-1-guide-2026).
- Pick the next cash-in unit (often WBI11).
- Sit a past paper under time.
- Mark against Pearson wording — definitions and command words matter.
- Second-pass the worst answer on MarkScheme with the Biology unit selected.