Unit 2 of IB Environmental Systems and Societies covers Ecology. This unit contains 8 topics and 28 sub-topics. Below you'll find free study notes, flashcards, and exam preparation resources for every topic in this unit.
Unit 2 covers ecological principles including species interactions, energy flows through food chains, nutrient cycling, and the structure of ecosystems. Students learn to analyse trophic levels, calculate productivity, and evaluate human impacts on ecological systems โ all frequently tested in IB ESS Paper 1 and Paper 2.
3 sub-topics
3 sub-topics
2 sub-topics
2 sub-topics
4 sub-topics
8 sub-topics
3 sub-topics
3 sub-topics
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