Biology 5090 · 19 Relationships of organisms with one another and with the environment
19.3 Ecosystems and biodiversity
Define ecological levels and biodiversity, and identify factors affecting population growth and resource demand.
- Questions
- 62
- Years
- 2004–2026
- Multiple choice
- 35
- Written answer
- 27
- Average marks
- 6
Practise relationships of organisms with one another and with the environment questions with instant markingTeachers: build a worksheet from past papers
Where this subtopic appears
- Paper 1variants 01, 11, 1235
- Paper 2variants 02, 21, 2215
- Paper 6variants 06, 61, 629
- Paper 3variants 03, 31, 323
Questions by year
| Year | May/June | Oct/Nov | Total |
|---|---|---|---|
| 2026 | 1 | – | 1 |
| 2023 | 2 | 4 | 6 |
| 2022 | 2 | – | 2 |
| 2021 | 5 | – | 5 |
| 2020 | 1 | 4 | 5 |
| 2019 | 1 | – | 1 |
| 2018 | 2 | 2 | 4 |
| 2017 | – | 3 | 3 |
| 2016 | 1 | – | 1 |
| 2015 | – | 2 | 2 |
| 2014 | 1 | 4 | 5 |
| 2013 | 2 | 2 | 4 |
| 2012 | 2 | – | 2 |
| 2011 | 2 | 1 | 3 |
| 2010 | – | 1 | 1 |
| 2009 | 3 | 2 | 5 |
| 2008 | – | 2 | 2 |
| 2006 | – | 5 | 5 |
| 2005 | 2 | 2 | 4 |
| 2004 | – | 1 | 1 |
