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A4.2 Conservation of biodiversity

Conservation of biodiversity connects biodiversity measurement, human-driven losses, ecosystem evidence, and targeted conservation strategies for protecting species, communities, and evolutionary history.

Syllabus
First assessment 2025
Topic
A4.2
Level
HL

What you’ll learn

8 learning objectives

Choose one objective for a focused lesson, or study the complete topic.

Exam analysis

An aggregate view of how the complete A4.2 Conservation of biodiversity appears across past papers.

Chance of appearing14%of analysed past papers
Latest appearanceNovember 2025
Most common paperPaper3

Most tested objectives

  1. A4.2.7—Conservation approaches13 questions
  2. A4.2.1—Biodiversity definition7 questions
  3. A4.2.4—Ecosystem loss causes3 questions

Common question formats

  • Definition or recall
  • Calculation
  • Data analysis
  • Evaluation
  • Process explanation
  • Extended response

Exam question appearances

November 2025Paper1A ["HL"] · TZ334[ 1 ]A4.2.4—Ecosystem loss causes
May 2025Paper2 ["HL"] · TZ17(c)[ 2 ]A4.2.4—Ecosystem loss causes
May 2025Paper2 ["HL"] · TZ26(c)(ii)[ 1 ]A4.2.7—Conservation approaches
May 2025Paper2 ["HL"] · TZ26(c)(i)[ 2 ]A4.2.8—EDGE of Existence programme
May 2025Paper2 ["HL"] · TZ26(b)[ 1 ]A4.2.6—Causes of biodiversity crisis
Practice this topic

5 original exam-style questions based on the patterns above.

Coverage 2012–2025 · Updated 15 Jul 2026

Study checklistA4.2 Conservation of biodiversity