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EnglandBiologyQuick questions
Module 4: Biodiversity, evolution and disease
Quick questions on Biodiversity and sampling: Simpson's index, quadrats, transects and mark-release-recapture - OCR A-Level Biology A
6short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.
What is levels of biodiversity?Show answer
Biodiversity is the variety of living organisms, measured at three levels:
What are sampling methods?Show answer
You cannot count every organism, so you sample and scale up. To avoid bias the sample must be random and large enough to be representative.
What is simpson's index of diversity?Show answer
OCR uses Simpson's index of diversity, :
What is q1?Show answer
Explain why a large number of quadrats should be used when sampling. [2 marks]
What is q2?Show answer
A community has Simpson's index of diversity of 0.15. Comment on its biodiversity. [2 marks]
What is q3?Show answer
State one economic reason for maintaining biodiversity. [1 mark]
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