Edexcel Biology GCSETopical 2020BiologyAnimal coordination, control and homeostasis Cells and controlEcosystems and material cycles Exchange and transport in animals Genetics Health, disease and the development of medicines Key concepts in biology Natural selection and genetic modificationCombined ScienceAnimal coordination, control and homeostasis Cells and control Ecosystems and material cycles Exchange and transport in animals Health, disease and the development of medicines Key concepts in biology Natural selection and genetic modification Plant structures and their functions