AS阶段:
Unit 1: Biological Molecules
Unit 2: Cells, Viruses, and Reproduction of Living Things
Unit 3: Classification and Biodiversity
Unit 4: Exchange, Transport, and
A2阶段:
Unit 5: Energy Transfers in and Between Organisms
Unit 6: Organisms Respond to Changes in Their Internal and External Environments
Unit 7: Genetics, Populations, Evolution, and Ecosystems
Unit 8: Control of Gene Expression