IB ESS 2.5.2 Transect use
IB ESS 2.5.2 Transect use

IB Environmental Systems and Societies syllabusESS SL/HLFirst assessment 2026
Practise designing transect measurements that connect abiotic gradients with changes in species distribution across habitats.
How this is tested
- suggest a suitable instrument to measure an abiotic factor along a transect
- link transect data to how a gradient affects species distribution
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