AS1 IB SL Biology II

IB SL Biology II 351401A Advanced Biology, Environmental Science, Career Ed, Elective The biology course is organized by topics, SL students study six topics and HL students study a further five, with some of these taking the first six topics to greater depth. In addition to this, students study two out of a choice of seven (at SL) or five (at HL) option topics. There are four basic biological concepts that run throughout: Structure and function; Universality versus diversity; Equilibrium within systems; and Evolution. These four concepts serve as themes that unify the various topics that make up the three sections of the course: the core, the additional higher level (AHL) material and the options.