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D4.2.4—Mesocosm model Topic Practice

D4.2.4—Mesocosm model Topic Practice
IB Biology syllabusBiology SL/HLFirst assessment 2025

Practise using mesocosm examples to analyse controlled ecosystem experiments, sustainability indicators and changes in biomass or temperature.

How this is tested

  • explain why mesocosms help control variables and isolate populations
  • interpret sustainability from recycling of wastes in a sealed system
  • predict which factors vary in closed mesocosms while carbon is conserved
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