A4.2.6—Causes of biodiversity crisis Topic Practice
A4.2.6—Causes of biodiversity crisis Topic Practice

IB Biology syllabusBiology SL/HLFirst assessment 2025
Practise stating and outlining causes of the biodiversity crisis, from urban growth and agriculture to overharvesting and pollution.
How this is tested
- state causes other than deforestation, such as overfishing, climate change or pollution
- apply land-use change, pesticide use and urbanisation to threats facing pollinators
- distinguish biodiversity loss causes from restoration actions in multiple-choice items
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