Biology · OCR, AQA & Edexcel

Question 1 of 3

Sampling / ecologyOCR style6 marks

Sampling / ecology practice

Practice quadrats, transects, random sampling, and evaluating ecological methods for reliability.

MethodVariablesEvaluation

Exam question

Describe how a student could estimate the abundance of a plant species in a field using quadrats and explain one way to improve reliability.

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