IB Biology A - Unity and Diversity Notes

Biology Topic A - Unity and Diversity Revision Notes

Browse syllabus-aligned notes for A - Unity and Diversity. Open each subtopic for focused explanations, examples, and summaries.

Browse summary cheatsheets for A - Unity and Diversity

A1.1 Water

8 subtopics

A1.2 Nucleic acids

15 subtopics

A2.1 Origins of cells (HL)

9 subtopics

A2.2 Cell structure

14 subtopics

A2.3 Viruses (HL)

6 subtopics

A3.1 Diversity of organisms

15 subtopics

A3.2 Classification and cladistics (HL)

9 subtopics

A4.1 Evolution and speciation

11 subtopics

A4.2 Conservation of biodiversity

8 subtopics