The capture-recapture method can be used to estimate the size of a population.
For which population would capture-recapture be the most suitable method?
woodlice living under logs in a wood
daisies growing on a school field
moss growing on the side of a wall
oak trees growing in a small woodland
109 exam-style questions on OCR GCSE Biology 6.1 Monitoring and maintaining the environment, covering 6.1.1 Field investigation of distribution and abundance, 6.1.2 Human interactions and biodiversity, 6.1.3 Maintaining biodiversity, and 6.1.4 Environmental change and distribution of organisms. Each one has a worked solution and a mark scheme showing where the marks go.