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Practice Ecology - Ecology and Evolution previous year questions organised from real papers, with year-wise coverage and clear topic navigation.
Every graph below is calculated only from this selection.
Year-wise coverage for Ecology. Each bar uses a separate theme-derived color.
How the classified questions are distributed by difficulty.
MCQ, numerical, multiple-select and other formats found in these papers.
Top subjects by unique question coverage.
Top topics across the included previous year papers.
Top subtopics inside this exact selection.
Question coverage for the most populated papers. Every active PYP paper remains listed below.
Open a focused page built from the same verified paper data.
Explore previous-paper coverage, trends and focused practice for Interactions.
Explore previous-paper coverage, trends and focused practice for Community Ecology.
Explore previous-paper coverage, trends and focused practice for Population Ecology.
Explore previous-paper coverage, trends and focused practice for Fundamental Concepts.
Explore previous-paper coverage, trends and focused practice for Ecosystem Structure and Function.
Newest papers appear first. Sort by year, question coverage or name.
| Paper | Year / session | Questions in this view | Open |
|---|---|---|---|
| Ecology and Evolution (EY) 2025 | 2025 | 19 | View paper |
| Ecology and Evolution (EY) 2024 | 2024 | 19 | View paper |
| Ecology and Evolution (EY) 2023 | 2023 | 21 | View paper |
| Ecology and Evolution (EY) 2022 | 2022 | 17 | View paper |
| Ecology and Evolution (EY) 2021 | 2021 | 15 | View paper |
| Ecology and Evolution (EY) 2020 | 2020 | 18 | View paper |
| Ecology and Evolution (EY) 2019 | 2019 | 14 | View paper |
| Ecology and Evolution (EY) 2018 | 2018 | 20 | View paper |
| Ecology and Evolution (EY) 2016 | 2016 | 16 | View paper |
| Ecology and Evolution (EY) 2015 | 2015 | 2 | View paper |
| Ecology and Evolution (EY) 2014 | 2014 | 19 | View paper |
A varied preview from the papers represented in this selection, with every available option.
On average, which ecosystem has the LOWEST net primary productivity per unit area?
Which of the following diversity indices best captures species turnover across habitats?
According to MacArthur and Wilson’s theory of island biogeography, the number of species on an island is a balance between