During an ecological survey of a freshwater pond, a student calculated a Simpson's Index of Diversity of 0.18. Which of the following is the correct interpretation of this index value?
The ecosystem has high biodiversity.
The ecosystem has low biodiversity.
The habitat is highly stable and resilient to environmental changes.
Species richness and evenness are both extremely high.
24 exam-style questions on OCR A A Level Biology Biodiversity. Each one has a worked solution and a mark scheme showing where the marks go.