Biology specification.
Browse AS and A2 topics by unit. Full WJEC specification ↗
AS · Unit 1Biochemistry & cells6 topics
AS · Unit 2Biodiversity & body systems4 topics
A2 · Unit 3Energy & the environment8 topics
A2 · Unit 4Genetics & variation8 topics
A2 · Unit 5Practical skills2 topics
Study one Unit 4 optional pathway. Practical and mathematical skills apply throughout. Topic labels are a summary; the official specification contains the full requirements.