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IB ESS 2.2.15 Food webs

IB ESS 2.2.15 Food webs
IB Environmental Systems and Societies syllabusESS SL/HLFirst assessment 2026

Practise reading food webs to trace energy flow, recognise multiple feeding links and predict impacts when species or trophic links change.

How this is tested

  • interpret food-web arrows to identify energy flow and feeding relationships
  • predict how removing a species changes connected consumers, prey and trophic pathways
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