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Science: Biology

7.3.1 Biodiversity

Exam Board: AQA

Biodiversity

 

Biodiversity is the variety of life in an ecosystem. 

A higher biodiversity means more species meaning a more stable ecosystem.

 

Why High Biodiversity Helps  

• Less dependence on one species  

• If one disappears → others fill gap

 

Human actions decrease biodiversity leading to future risk to the ecosystem.

Screenshot 2025-11-18 at 23_edited.jpg

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