IB Biology Exam Guide

Biology Exam Skills & Techniques

Everything you need to master the IB Biology exam at SL and HL on the 2023 syllabus — paper structures, command terms, marking criteria, the Section B data-analysis skills, and the Scientific Investigation IA.

Aimnova offers full SL and HL content for Biology. Choose your level below to jump into the complete exam guide.

Standard Level

Full exam skills guide for Biology SL — command terms, paper structures, marking criteria, Section B data skills, and IA advice.

• 150 teaching hours
• Paper 1: 1h 30m, Sections A + B (36%)
• Paper 2: 1h 30m, 50 marks (44%)
• IA: Scientific Investigation (20%)

Higher Level

Full exam skills guide for Biology HL — command terms, all components including the HL extensions, marking criteria, Section B data skills, and IA advice.

• 240 teaching hours
• Paper 1: 2h, Sections A + B (36%)
• Paper 2: 2h 30m, 80 marks (44%)
• IA: Scientific Investigation (20%)