IB Biology C1.3.8 CO₂ enrichment experiments
IB Biology C1.3.8 CO₂ enrichment experiments

IB Biology syllabusBiology SL/HLFirst assessment 2025
Practise judging CO2 enrichment experiments by using graph data to evaluate whether elevated CO2 changes plant growth or photosynthesis rates.
How this is tested
- interpret FACE experiment choices and why field data may better model future rates
- use graph data to judge whether elevated CO2 increases maize growth rate
- distinguish controlled CO2 uptake from less controlled field conditions
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