A4.2.4—Ecosystem loss causes Topic Practice
A4.2.4—Ecosystem loss causes Topic Practice

IB Biology syllabusBiology SL/HLFirst assessment 2025
Practise explaining ecosystem loss from maps and data, including forest clearance, fragmentation, coral decline and habitat change.
How this is tested
- interpret satellite images to link forest loss with logging and palm oil plantations
- explain how deforestation reduces habitat, food, shelter and breeding success
- predict effects of warming or acidification on coral reefs and dependent habitats
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