OCR GCSE Biology B · J257
Paper 1 (Foundation), Paper 2 (Foundation), Paper 3 (Higher), Paper 4 (Higher)
Revise: Maintaining BiodiversityBiodiverse ecosystems also provide ecosystem services—benefits from nature that support human wellbeing. These include pollination of crops, useful biological materials and the natural processes that maintain productive ecosystems. Maintaining a variety of crop species, wild relatives and pollinators can therefore contribute to food security.