Spec J247
Revise OCR GCSE Biology 6.1 Monitoring and maintaining the environment with the question bank, lessons, revision guides, and flashcards.
explain how to carry out a field investigation into the distribution and abundance of organisms in a habitat and how to determine their numbers in a given area • sampling techniques (random and transects, capture-recapture), use of quadrats, pooters, nets, keys and scaling up methods
