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Previous year question hub

Ecology and Evolution Previous Year Questions

Practice Ecology and Evolution previous year questions organised from real papers, with year-wise coverage and clear topic navigation.

13Papers
13Years
615Questions
5Topics

Ecology and Evolution question pattern

Every graph below is calculated only from this selection.

Questions by year

Compare question counts across years.

Difficulty distribution

How the classified questions are distributed by difficulty.

Easy 388 63.1%
Medium 225 36.6%
Hard 2 0.3%

Question type distribution

MCQ, numerical, multiple-select and other formats found in these papers.

MCQ 459 74.6%
MSQ 71 11.5%
Numerical Answer Type (NAT) 63 10.2%
Fill in the blanks 22 3.6%

Subject weightage

Top subjects by unique question coverage.

Ecology and Evolution
615 Qs

Most asked topics

Top topics across the included previous year papers.

Ecology
196 Qs
Evolution
169 Qs
Mathematics and Quantitative Ecology
115 Qs
Behavioural Ecology
99 Qs
Applied Ecology & Evolution
36 Qs

Subtopic coverage

Top subtopics inside this exact selection.

Mathematics and Statistics in Ecology
101 Qs
Interactions
52 Qs
Population and Quantitative Genetics
44 Qs
Foraging and Reproduction
43 Qs
Community Ecology
43 Qs
Fundamentals
40 Qs
Population Ecology
39 Qs
Classical Ethology and Sensory Ecology
37 Qs
Fundamental Concepts
35 Qs
Molecular Evolution and Phylogenetics
34 Qs
Ecosystem Structure and Function
27 Qs
Diversity of Life
23 Qs
Social Behaviour
19 Qs
Global Change
17 Qs
Interactions
15 Qs
Study design and Statistical methods
14 Qs
Biodiversity and Conservation
14 Qs
Macroevolution
7 Qs
Life History Theory
6 Qs
Disease Ecology and Evolution
5 Qs

Paper coverage

Question coverage for the most populated papers. Every active PYP paper remains listed below.

Ecology and Evolution (EY) 2026
53 Qs
Ecology and Evolution (EY) 2025
54 Qs
Ecology and Evolution (EY) 2024
55 Qs
Ecology and Evolution (EY) 2023
55 Qs
Ecology and Evolution (EY) 2022
53 Qs
Ecology and Evolution (EY) 2021
54 Qs
Ecology and Evolution (EY) 2020
52 Qs
Ecology and Evolution (EY) 2019
53 Qs
Ecology and Evolution (EY) 2018
54 Qs
Ecology and Evolution (EY) 2017
1 Qs
Ecology and Evolution (EY) 2016
63 Qs
Ecology and Evolution (EY) 2015
8 Qs
Ecology and Evolution (EY) 2014
60 Qs

Browse by topics

Open a focused page built from the same verified paper data.

Ecology

Explore previous-paper coverage, trends and focused practice for Ecology.

196 questions12 papers12 years

Evolution

Explore previous-paper coverage, trends and focused practice for Evolution.

169 questions12 papers12 years

Mathematics and Quantitative Ecology

Explore previous-paper coverage, trends and focused practice for Mathematics and Quantitative Ecology.

115 questions13 papers13 years

Behavioural Ecology

Explore previous-paper coverage, trends and focused practice for Behavioural Ecology.

99 questions11 papers11 years

Applied Ecology & Evolution

Explore previous-paper coverage, trends and focused practice for Applied Ecology & Evolution.

36 questions10 papers10 years

Included previous year papers

Newest papers appear first. Search these papers or sort by year and name.

Paper nameYearPDFAttempt
Ecology and Evolution (EY) 20262026
53 questions in this view		2026
ExamElite PDFs
ExamElite solutions
Official documents
Official question paperOriginal authority-issued PDF Official Download Official answer keyOriginal authority-issued PDF Official Download
Ecology and Evolution (EY) 20252025
54 questions in this view		2025
ExamElite PDFs
ExamElite solutions
Official documents
Official question paperOriginal authority-issued PDF Official Download Official answer keyOriginal authority-issued PDF Official Download
Ecology and Evolution (EY) 20242024
55 questions in this view		2024
ExamElite PDFs
ExamElite solutions
Official documents
Official question paperOriginal authority-issued PDF Official Download Official answer keyOriginal authority-issued PDF Official Download
Ecology and Evolution (EY) 20232023
55 questions in this view		2023
ExamElite PDFs
ExamElite solutions
Official documents
Official question paperOriginal authority-issued PDF Official Download Official answer keyOriginal authority-issued PDF Official Download
Ecology and Evolution (EY) 20222022
53 questions in this view		2022
ExamElite PDFs
ExamElite solutions
Official documents
Official question paperOriginal authority-issued PDF Official Download Official answer keyOriginal authority-issued PDF Official Download
Ecology and Evolution (EY) 20212021
54 questions in this view		2021
ExamElite PDFs
ExamElite solutions
Official documents
Official question paperOriginal authority-issued PDF Official Download Official answer keyOriginal authority-issued PDF Official Download
Ecology and Evolution (EY) 20202020
52 questions in this view		2020
ExamElite PDFs
ExamElite solutions
Official documents
Official question paperOriginal authority-issued PDF Official Download
Ecology and Evolution (EY) 20192019
53 questions in this view		2019
ExamElite PDFs
ExamElite solutions
Official documents
Official question paperOriginal authority-issued PDF Official Download
Ecology and Evolution (EY) 20182018
54 questions in this view		2018
ExamElite PDFs
ExamElite solutions
Official documents
Official question paperOriginal authority-issued PDF Official Download
Ecology and Evolution (EY) 20172017
1 questions in this view		2017
ExamElite PDFs
ExamElite solutions
Official documents
Official question paperOriginal authority-issued PDF Official Download
Ecology and Evolution (EY) 20162016
63 questions in this view		2016
ExamElite PDFs
ExamElite solutions
Official documents
Official question paperOriginal authority-issued PDF Official Download
Ecology and Evolution (EY) 20152015
8 questions in this view		2015
ExamElite PDFs
ExamElite solutions
Official documents
Official question paperOriginal authority-issued PDF Official Download
Ecology and Evolution (EY) 20142014
60 questions in this view		2014
ExamElite PDFs
ExamElite solutions
Official documents
Official question paperOriginal authority-issued PDF Official Download

Sample previous year questions

A varied preview from the papers represented in this selection, with every available option.

1
2014 · Ecology and Evolution · Mathematics and Quantitative Ecology · Mathematics and Statistics in Ecology
Ecology and Evolution (EY) 2014
A student is required to demonstrate a high level of comprehension of the subject, especially in the social sciences.
The word closest in meaning to comprehension is
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2
2015 · Ecology and Evolution · Mathematics and Quantitative Ecology · Mathematics and Statistics in Ecology
Ecology and Evolution (EY) 2015

Fill in the missing value

Question diagram

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3
2018 · Ecology and Evolution · Evolution · Macroevolution
Ecology and Evolution (EY) 2018
During the Pleistocene, which of the following groups experienced the largest mass extinction?
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4
2019 · Ecology and Evolution · Behavioural Ecology · Social Behaviour
Ecology and Evolution (EY) 2019
Which of the following is NOT an example of cooperative behaviour?
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5
2020 · Ecology and Evolution · Evolution · Fundamentals
Ecology and Evolution (EY) 2020
Who among the following was a strong public supporter of Darwin’s theory of evolution by natural selection?
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6
2021 · Ecology and Evolution · Behavioural Ecology · Social Behaviour
Ecology and Evolution (EY) 2021
Listed below are hypotheses for the evolution of monogamy. Which one of these is NOT based on the concept of individual selection?
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