IB ESS — Topic 3.1
Biodiversity
Topic 3.1 defines biodiversity at the genetic, species, and ecosystem levels and explains why it matters for ecosystem stability and human well-being. Students learn about biodiversity hotspots, the relationship between biodiversity and ecosystem services, and methods for measuring species diversity.
Sub-topics in Topic 3.1
Study Topic 3.1: Biodiversity
Read the complete notes with diagrams, key terms, and exam tips
❓ IB ESS Question Bank
Practise exam-style questions for Topic 3.1
📖 IB Command Terms
Learn what examiners expect for Explain, Evaluate, Discuss…