IB DP Biology Themes
Explore our most popular IB Science lessons that have been well researched and arranged for clarity.
Theme A: Unity and Diversity
Common ancestry has given living organisms many shared features, while evolution has resulted in the rich biodiversity of life on Earth.
Theme B: Form and Function
Adaptations are forms that correspond to function. These adaptations persist from generation to generation because they increase the chances of survival.
Theme C: Interaction and interdependence
Systems are based on interactions, interdependence and integration of components. Systems result in emergence of new properties at each level of biological organization.
Theme D: Continuity and change
Living things have mechanisms for maintaining equilibrium and for bringing about transformation. Environmental change is a driver of evolution by natural selection.
IB DP Biology Themes
Explore our most popular IB Science lessons that have been well researched and arranged for clarity.
