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NotesESS HLTopic 3.6
Unit 3 · Biodiversity and Conservation · Topic 3.6

IB ESS HL — In situ vs ex situ conservation

HL Topic 3.6 requires deeper comparative analysis of in situ and ex situ approaches, including genetic management in captive populations, reintroduction success rates, and the economic and ethical dimensions of each conservation strategy.

3.6 FlashcardsExam technique guidePractice questions

What you'll learn in Topic 3.6

  • 3.6.1 In situ conservation
  • 3.6.2 Ex situ conservation
  • 3.6.3 Choosing the best strategy (and why)

Exam relevance

At Higher Level, ESS includes an extended essay component and deeper analytical questioning. Expect longer data-response questions and more complex case study scenarios in both Paper 1 and Paper 2.

Suggested study order: Read the notes for each sub-topic below → test yourself with flashcards → attempt practice questions → review exam technique.

Study resources — 3.6 In situ vs ex situ conservation

3.6.1

In situ conservation

NotesFlashcards
3.6.2

Ex situ conservation

NotesFlashcards
3.6.3

Choosing the best strategy (and why)

NotesFlashcards

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Topic 3.6 In situ vs ex situ conservation forms a core part of Unit 3: Biodiversity and Conservation in IB ESS HL. Mastering these concepts will strengthen your understanding of connected topics across the syllabus and prepare you for exam questions that require analysis, evaluation, and real-world application.

Frequently asked questions

What does Topic 3.6 In situ vs ex situ conservation cover in IB ESS?
Topic 3.6 covers in situ vs ex situ conservation as part of the IB ESS syllabus. Students learn key concepts, definitions, and real-world examples that are tested in Paper 1 and Paper 2 exams.
How should I revise In situ vs ex situ conservation for IB ESS exams?
Start by reading the micro-topic notes to understand each concept, then use flashcards to memorise key terms. Practise exam-style questions to apply your knowledge under timed conditions and review the marking criteria.
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