C4.1.11—Interspecific relationships Topic Practice
C4.1.11—Interspecific relationships Topic Practice

IB Biology syllabusBiology SL/HLFirst assessment 2025
Practise interpreting interspecific relationships from food choice, plant growth, pollination and predator-prey data in ecological contexts.
How this is tested
- explain how one species can reduce another through competition for light, water or nutrients
- interpret data on feeding, predation or pollination to infer effects between species
- suggest how prey traits or plant cover could change feeding choices and survival
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