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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