IB Biology Topic A4.2.2 Comparisons Between Current Number of Species on Earth and Past Levels of Biodiversity (SL/HL) covers syllabus content as part of Topic A4: Ecosystems under Theme A: Unity and Diversity. Use these notes, videos, flashcards, and lessons to review the topic, practise exam questions, and move between notes, videos, flashcards, and lessons where available.
A4.2.2 Comparisons between current number of species on Earth and past levels of biodiversity is part of Topic A4: Ecosystems under Theme A: Unity and Diversity.
