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A4.2 Conservation of biodiversity

IB Biology Topic A4.2: Conservation of Biodiversity Lessons

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A4.2 Conservation of biodiversity Lessons - IB Biology

Written by official IB examiners

Lessons for A4.2 Conservation of biodiversity - IB

This lesson delivers structured, step-by-step lessons that guide students through every part of the IB Biology syllabus for A4.2 Conservation of biodiversity. These lessons simplify complex ideas like molecular biology, evolutionary mechanisms, and homeostasis, while worked examples show how to approach IB-style questions.

Designed for both HL and SL learners, RevisionDojo lessons ensure students not only understand the theory but also know how to apply it in IB Paper exam situations.

With clear explanations, active learning checks, and a syllabus-first design, RevisionDojo makes revision less overwhelming and more effective.

A4.2.1 Biodiversity as the variety of life in all its forms, levels and combinations

A4.2.2 Comparisons between current number of species on Earth and past levels of biodiversity

A4.2.3 Causes of anthropogenic species extinction

A4.2.4 Causes of ecosystem loss

A4.2.5 Evidence for a biodiversity crisis

A4.2.6 Causes of the current biodiversity crisis

A4.2.7 Need for several approaches to conservation of biodiversity

A4.2.8 Evolutionarily distinct and globally endangered species in conservation prioritization

A1.1 Water

A1.2 Nucleic acids

A2.1 Origins of cells (HL)

A2.2 Cell structure

A2.3 Viruses (HL)

A3.1 Diversity of organisms

A3.2 Classification and cladistics (HL)

A4.1 Evolution and speciation

A4.2 Conservation of biodiversity