IB Biology HL · 2025
2.10 Ecological niches
19 past paper questions from 7 papers across 3 exam sessions. See what repeats, then practise the same skills with AI marking.
HL archive · 2025 to 2026
2.10 Ecological niches
Latest exam session: May 2026
- questions
- questions
- papers
- papers
- exam sessions
- exam sessions
Micro-topics in 2.10 Ecological niches
In syllabus order. The ring is the share of papers each appears in. 2 of them have no matching questions in this archive.
2.10.1
No question tagged to this topic in the 18 Biology HL papers analysed
No matches in this archiveRevise it2.10.2
Abiotic factors, tolerance and biomes
No question tagged to this topic in the 18 Biology HL papers analysed
No matches in this archiveRevise it- Regular
last Nov 25 P1 TZ3
- Regular
last May 26 P2 TZ3
- Regular
last May 26 P2 TZ2
Exam pattern
How often each micro-topic has been examined, year by year. Each label is explained under the grid.
Does it repeat?
Questions per year for each micro-topic, including those with no matches in this archive.
fewermore
| Micro-topic | 2025 | 2026 |
|---|---|---|
| 11Interspecific relationships, 2025: 11 questions | 1Interspecific relationships, 2026: 1 question | |
| 4Modes of nutrition, 2025: 4 questions | ·Modes of nutrition, 2026: 0 questions | |
| 1Competitive exclusion and realized niches, 2025: 1 question | 2Competitive exclusion and realized niches, 2026: 2 questions | |
| ·What is an ecological niche?, 2025: 0 questions | ·What is an ecological niche?, 2026: 0 questions | |
| ·Abiotic factors, tolerance and biomes, 2025: 0 questions | ·Abiotic factors, tolerance and biomes, 2026: 0 questions |
- Regularin roughly one paper in six or more
- No matches in this archiveon the syllabus, but has no question tagged to it in this archive. This does not mean it has never been examined
Past paper generator
Generate Biology HL past paper questions
Choose what to revise and build a set in one click. Every question stays whole, so multi-part questions come as they appeared in the exam.
- 1Pick any unit, topic or micro-topic
- 2Generate whole exam questions from the archive
- 3Practise the same skills with AI marking
Questions on 2.10 Ecological niches, by exam session
Which papers asked about 2.10 Ecological niches, and which question numbers. Open a paper to see them highlighted.
Every 2.10 Ecological niches question, unlocked
Generate all 19 questions in this topic at once, practise every one with AI marking, and see how each mark is awarded.
- Every past-paper question in any unit, topic or micro-topic
- Generate sets of 20 or all questions, as often as you like
- Unlimited practice with AI marking and worked answers
- See how every mark is awarded for each question
- Predicted papers and crash courses built from the same data
Used by IB students preparing for Nov 2026, May 2027 and May 2028
From €8/mo. 14-day money-back guarantee. Cancel anytime.
Frequently asked questions
Short answers about this page.
Which Biology HL exam sessions are covered for 2.10 Ecological niches?
4 exam sessions from 2025 to 2026, the latest May 2026. Every Paper 1 and 2 in every timezone is read and classified in full, which gives 7 papers in this archive.
Which 2.10 Ecological niches topic comes up most?
Interspecific relationships (2.10.5): in 17% of papers, last seen May 26 P2 TZ2. Usually "Outline", worth about 5.7 marks in a paper that includes it.
Can I see the original question and mark scheme?
No. The wording belongs to the IB. You get the citation, the marks, the command term and the skill tested, plus our own matched practice questions with worked answers and AI marking.
What do "banker", "due" and "rising" mean?
Banker: examined in at least one sitting in four and still appearing. Due: regular before, but absent for the last two exam sessions. Rising: clearly more common in the last two years. Our classification of real papers, not an IB statistic.
What is free and what needs Pro?
Reading this page and the exam pattern is free. A free account generates three sets of ten questions and launches one practice set. Pro opens every question in any scope, sets of twenty or all, and unlimited practice.
Keep going
More Biology HL exam preparation
Every question, by paper
What each Biology HL paper tests across all its sittings: the marks by unit and the micro-topics it keeps coming back to.
Open the paper analysis
Mock exams
Full Biology HL papers under timed conditions, marked by AI against IB criteria.
Sit a mock
All IB past papers
Every subject we have classified by topic, with the same exam-pattern analysis.
Browse subjects
Practise 2.10 Ecological niches the way it is examined.
Pick any unit, topic or micro-topic, see what repeats, then practise the same skills with AI marking.