Revision notes for OCR A A-Level Biology, modules 2-6. The PDFs contain summarised information from the module and hand-drawn diagrams or tables to make the information easier to consume. It covers all subtopics in each module.

(Module 1 - Development of practical skills in Biology - this is NOT included but much of the content is covered elsewhere.)
Module 2 - Foundations in Biology
Module 3 - Exchange and Transport
Module 4 - Biodiversity, Evolution, and Disease
Module 5 - Communication, Homeostasis, and Energy
Module 6 - Genetics and Ecosystems