IB ESS 3.1.1 Biodiversity levels
IB ESS 3.1.1 Biodiversity levels

IB Environmental Systems and Societies syllabusESS SL/HLFirst assessment 2026
Practise recognising species, habitat and genetic diversity, then applying them to records, maps and ecosystem examples such as islands or reefs.
How this is tested
- identify genetic or habitat diversity when records already show species diversity
- use figures to relate habitat variety, isolation or latitude to species richness
- distinguish richness and evenness when comparing biodiversity between ecosystems
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