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Previous year question hub

Behavioural Ecology - Ecology and Evolution Previous Year Questions

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

11Papers
11Years
99Questions
1Topics

Behavioural Ecology 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 54 54.5%
Medium 45 45.5%

Question type distribution

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

MCQ 75 75.8%
MSQ 19 19.2%
Fill in the blanks 3 3%
Numerical Answer Type (NAT) 2 2%

Subject weightage

Top subjects by unique question coverage.

Ecology and Evolution
99 Qs

Most asked topics

Top topics across the included previous year papers.

Behavioural Ecology
99 Qs

Subtopic coverage

Top subtopics inside this exact selection.

Foraging and Reproduction
43 Qs
Classical Ethology and Sensory Ecology
37 Qs
Social Behaviour
19 Qs

Paper coverage

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

Ecology and Evolution (EY) 2026
10 Qs
Ecology and Evolution (EY) 2025
6 Qs
Ecology and Evolution (EY) 2024
9 Qs
Ecology and Evolution (EY) 2023
7 Qs
Ecology and Evolution (EY) 2022
9 Qs
Ecology and Evolution (EY) 2021
10 Qs
Ecology and Evolution (EY) 2020
9 Qs
Ecology and Evolution (EY) 2019
10 Qs
Ecology and Evolution (EY) 2018
12 Qs
Ecology and Evolution (EY) 2016
8 Qs
Ecology and Evolution (EY) 2014
9 Qs

Browse by subtopics

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

Included previous year papers

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

Paper nameYearPDFAttempt
Ecology and Evolution (EY) 20262026
10 questions in this view
2026
Ecology and Evolution (EY) 20252025
6 questions in this view
2025
Ecology and Evolution (EY) 20242024
9 questions in this view
2024
Ecology and Evolution (EY) 20232023
7 questions in this view
2023
Ecology and Evolution (EY) 20222022
9 questions in this view
2022
Ecology and Evolution (EY) 20212021
10 questions in this view
2021
Ecology and Evolution (EY) 20202020
9 questions in this view
2020
Ecology and Evolution (EY) 20192019
10 questions in this view
2019
Ecology and Evolution (EY) 20182018
12 questions in this view
2018
Ecology and Evolution (EY) 20162016
8 questions in this view
2016
Ecology and Evolution (EY) 20142014
9 questions in this view
2014

Sample previous year questions

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

1
2014 · Ecology and Evolution · Behavioural Ecology · Foraging and Reproduction
Ecology and Evolution (EY) 2014

Two sympatric species of fruit flies congregate on the fruit of two closely related species of trees for mating. The cue most likely to be used by these fly species to locate their mates from a long distance would be

Question diagram

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2
2018 · Ecology and Evolution · Behavioural Ecology · Social Behaviour
Ecology and Evolution (EY) 2018

In group living species, the term “dilution effect” refers to

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3
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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4
2020 · Ecology and Evolution · Behavioural Ecology · Foraging and Reproduction
Ecology and Evolution (EY) 2020

Which of the following sensory mechanisms do most frugivorous bats primarily use while foraging?

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5
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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6
2024 · Ecology and Evolution · Behavioural Ecology · Classical Ethology and Sensory Ecology
Ecology and Evolution (EY) 2024

Individual lizards were repeatedly presented with a predator model. Over successive trials, they showed a reduction in the duration of their alarm response. Which one of the following is this an example of?

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