The exam evaluates foundational biological concepts, focusing on hormonal control, ecosystems, genetic inheritance, decay processes, and human physiology. Key topics include the endocrine system, population estimation, food chains, adaptations, kidney function, decay by microorganisms, and selective breeding. Tasks emphasize data analysis, experimental design, application of biological principles, and evaluation of environmental and genetic interactions. Keywords: GCSE Biology, Foundation Tier, hormonal control, ecosystems, genetic inheritance, decay processes, human physiology, population estimation, selective breeding, data analysis.