The OCR GCSE Biology Paper 2 (June 2022) focuses on ecosystem interactions, energy flow in food webs, and genetic inheritance. Key topics include selective breeding, heart disease treatments, genetic modification, and plant reproduction. The paper examines biological control, natural selection, and viral infections like measles, emphasizing ethical considerations and disease prevention. Investigations into decomposition, thistle growth, and plant defenses highlight practical applications, while data interpretation and experimental design remain central to understanding biodiversity and human impacts on ecosystems.