IB Biology SL study guide

IB Biology SL is the standard-level biology course within the International Baccalaureate Diploma Programme, a two-year pre-university qualification taught in schools worldwide and recognised by universities for admission. It suits students who need a rigorous, experimentally grounded biology foundation without the additional depth and breadth of Higher Level, and it often sits alongside chemistry, mathematics or humanities subjects in a broader diploma. The course is organised around four themes - unity and diversity, form and function, interaction and interdependence, and continuity and change - covering molecules and cells, genetics, physiology, ecology, evolution and biodiversity, with an emphasis on experimental skills and data analysis rather than memorisation alone. Assessment combines multiple-choice, short-answer and extended-response papers with an internally assessed practical investigation, so you must be able to explain mechanisms in prose, interpret unfamiliar data and design a controlled experiment. The IB Biology SL study guide has 4 sections and about 1,481 words.