Biology (A) J247,04 Higher June 2018, OCR GCSE Past Papers with Mark Schemes

The OCR GCSE Biology Paper 4 (June 2018) examines ecological balance, genetic variation, and human impacts on ecosystems. Topics include plant defense mechanisms, genetic engineering, meiosis, and composting. It highlights practical investigations, such as measuring plant growth under varying conditions, studying the effects of acid rain, and analyzing food chains. Key themes encompass natural selection, biodiversity, disease control, and advancements like monoclonal antibodies and genetic modification. Emphasis is placed on data analysis, experimental design, and ethical considerations in genetic research and environmental sustainability.