IB Biology SL C Interaction and Interdependence Questions
Practise IB Biology SL C Interaction and Interdependence through questions on signalling, transport, defence, ecosystems and organism interactions.
550 questions in this syllabus scope, with question parts counted together.
Syllabus
First assessment 2025
Course
Biology SL
Level
SL
Exam analysis
SL · 2010–2025
Past-paper evidence in Interaction and Interdependence clusters around regulated processes, signalling, defence and ecological relationships. The recurring pattern is explaining how interactions control biological outcomes, from enzyme activity and energy transfer to population change and ecosystem cycling.
Papers with this topic139 / 141in the analysed sample
