Relationships of organisms with one another and with the environment · Cambridge O Level 5090
19.3 Ecosystems and biodiversity
19.3 Ecosystems and biodiversity appeared in 6 of the 6 years from 2020–2025, worth 206 marks across 26 questions — about 7.92 marks each.
Based on 84 real Cambridge past papers, 2020–2025.
Questions per year
How many Biology questions tagged to this topic appeared each year.
- 20203
- 20211
- 20224
- 20236
- 202410
- 20252
Appearance history
- Most recent
- 2025
- First in range
- 2020
- Years since last
- 0
- Longest gap
- 0 years
Historical occurrence only — not an exam prediction.
Related topics
Topics that most often share a question with this one.
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