IB Biology HL · 2025
1.6 Diversity of organisms
14 past paper questions from 10 papers across 4 exam sessions. See what repeats, then practise the same skills with AI marking.
Original Exam Vault questions with AI markscheme feedback for this topic.
HL archive · 2025 to 2026
1.6 Diversity of organisms
Latest exam session: May 2026
- questions
- questions
- papers
- papers
- exam sessions
- exam sessions
Micro-topics in 1.6 Diversity of organisms
In syllabus order. The ring is the share of papers each appears in. 5 of them have no matching questions in this archive.
1.6.1
Variation between organisms as a defining feature of life
No question tagged to this topic in the 18 Biology HL papers analysed
No matches in this archiveRevise it1.6.2
Species as groups of organisms with shared traits
No question tagged to this topic in the 18 Biology HL papers analysed
No matches in this archiveRevise it- Regular
last May 26 P1 TZ1
- Less common
last May 25 P1 TZ3
1.6.5
Difficulties distinguishing between populations and species
No question tagged to this topic in the 18 Biology HL papers analysed
No matches in this archiveRevise it- Less common
last Nov 25 P2 TZ1
- Less common
last May 25 P1 TZ1
1.6.8
Unity and diversity of genomes within species
No question tagged to this topic in the 18 Biology HL papers analysed
No matches in this archiveRevise it1.6.9
Diversity of eukaryote genomes
No question tagged to this topic in the 18 Biology HL papers analysed
No matches in this archiveRevise it- Less common
last Spec 25 P1
- Less common
last May 26 P2 TZ3
- Less common
last Nov 25 P2 TZ3
- Less common
last May 26 P2 TZ2
- Less common
last Spec 25 P1
- Regular
last May 26 P1 TZ3
Exam pattern
How often each micro-topic has been examined, year by year. Each label is explained under the grid.
Does it repeat?
Top 4 of 10 micro-topics for the next sitting. Numbers are questions per year.
fewermore
| Micro-topic | 2025 | 2026 |
|---|---|---|
| 2Binomial system for naming organisms, 2025: 2 questions | 1Binomial system for naming organisms, 2026: 1 question | |
| 1Identification of species from environmental DNA using barcodes, 2025: 1 question | 2Identification of species from environmental DNA using barcodes, 2026: 2 questions | |
| ·Chromosome number as a shared trait within a species, 2025: 0 questions | 1Chromosome number as a shared trait within a species, 2026: 1 question | |
| ·Current and potential future uses of whole genome sequencing, 2025: 0 questions | 1Current and potential future uses of whole genome sequencing, 2026: 1 question |
4 more micro-topics with a free account
Free account · no card needed
See the full exam pattern
Every micro-topic in the heatmap and the complete watch list, free with an account.
You come straight back to this page with your set built.
- With a free account
- 3 generated sets of 10 past-paper questions, any scope
- One AI-marked practice set with step-by-step feedback
- The full exam pattern: every micro-topic and the watch list
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 1.6 Diversity of organisms, by exam session
Which papers asked about 1.6 Diversity of organisms, and which question numbers. Open a paper to see them highlighted.
May 2026
5 questions across 4 papers
November 2025
3 questions across 3 papers
May 2025
4 questions across 2 papers
Specimen 2025
2 questions across 1 paper
Every 1.6 Diversity of organisms question, unlocked
Generate all 14 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 €8.29/mo. 14-day money-back guarantee. Cancel anytime.
Frequently asked questions
Short answers about this page.
Which Biology HL exam sessions are covered for 1.6 Diversity of organisms?
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 10 papers in this archive.
Which 1.6 Diversity of organisms topic comes up most?
Binomial system for naming organisms (1.6.3): in 17% of papers, last seen May 26 P1 TZ1. Usually "Identify", worth about 1 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 1.6 Diversity of organisms the way it is examined.
Pick any unit, topic or micro-topic, see what repeats, then practise the same skills with AI marking.