IB Biology Topic A4.2 Conservation of Biodiversity (SL/HL) covers syllabus content as part of Topic A4: Ecosystems under Theme A: Unity and Diversity. Use these notes, questionbank, videos, flashcards, and lessons to review the topic, practise exam questions, and move between notes, videos, flashcards, and lessons where available.
A4.2 Conservation of biodiversity is part of Topic A4: Ecosystems under Theme A: Unity and Diversity.
What this topic covers
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