IB ESS SL 2.1.7 Abiotic Factors Question Bank
Apply temperature, water, light, pH and other abiotic factors to species-distribution examples.
- Syllabus
- First assessment 2026
- Course
- ESS SL
- Level
- SL
Apply temperature, water, light, pH and other abiotic factors to species-distribution examples.

Figure:Habitat preference of Danube fish species
Figure: Habitat preference of Danube fish species
compare and contrast the abiotic factors found in the straight part of the river with the abiotic factors found in the meandering part of the river.
lower summer water temperatures in straight part / higher in meandering part;
BOD is lower in straight part / higher in meandering part; lower amount of suspended sediment in straight part / higher in meandering part; higher velocity in straight part / lower in meandering;