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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.

11Papers
11Years
561Questions
5Topics

Ecology and Evolution question pattern

Every graph below is calculated only from this selection.

Questions by year

Year-wise coverage for Ecology and Evolution. Each bar uses a separate theme-derived color.

Difficulty distribution

How the classified questions are distributed by difficulty.

Easy 347 61.9%
Medium 212 37.8%
Hard 2 0.4%

Question type distribution

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

MCQ 422 75.2%
MSQ 61 10.9%
Numerical Answer Type (NAT) 57 10.2%
Fill in the blanks 21 3.7%

Subject weightage

Top subjects by unique question coverage.

Ecology and Evolution
561 Qs

Most asked topics

Top topics across the included previous year papers.

Ecology
180 Qs
Evolution
152 Qs
Mathematics and Quantitative Ecology
106 Qs
Behavioural Ecology
89 Qs
Applied Ecology & Evolution
34 Qs

Subtopic coverage

Top subtopics inside this exact selection.

Mathematics and Statistics in Ecology
93 Qs
Interactions
46 Qs
Community Ecology
40 Qs
Population and Quantitative Genetics
39 Qs
Foraging and Reproduction
37 Qs
Fundamentals
36 Qs
Classical Ethology and Sensory Ecology
36 Qs
Population Ecology
36 Qs
Fundamental Concepts
33 Qs
Molecular Evolution and Phylogenetics
31 Qs
Ecosystem Structure and Function
25 Qs
Diversity of Life
22 Qs
Global Change
17 Qs
Social Behaviour
16 Qs
Study design and Statistical methods
13 Qs
Biodiversity and Conservation
13 Qs
Interactions
13 Qs
Macroevolution
7 Qs
Life History Theory
4 Qs
Disease Ecology and Evolution
4 Qs

Paper coverage

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

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) 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.

180 questions11 papers11 years

Evolution

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

152 questions11 papers11 years

Mathematics and Quantitative Ecology

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

106 questions11 papers11 years

Behavioural Ecology

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

89 questions10 papers10 years

Applied Ecology & Evolution

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

34 questions9 papers9 years

Included previous year papers

Newest papers appear first. Sort by year, question coverage or name.

PaperYear / sessionQuestions in this viewOpen
Ecology and Evolution (EY) 2025202554View paper
Ecology and Evolution (EY) 2024202455View paper
Ecology and Evolution (EY) 2023202355View paper
Ecology and Evolution (EY) 2022202253View paper
Ecology and Evolution (EY) 2021202154View paper
Ecology and Evolution (EY) 2020202052View paper
Ecology and Evolution (EY) 2019201953View paper
Ecology and Evolution (EY) 2018201854View paper
Ecology and Evolution (EY) 2016201663View paper
Ecology and Evolution (EY) 201520158View paper
Ecology and Evolution (EY) 2014201460View paper

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

Open complete paper
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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