C. Interaction and Interdependence
3. Organisms
C3.1 Integration of body systems
STANDARD LEVEL Student slide set
C3.1 Integration of body systems (SL)HIGHER LEVEL Student slide set
C3.1 Integration of body systems (HL)
C3.1 Integration of body systems (SL + HL) Questions and answersC3.2 Defense against disease
STANDARD LEVEL Student slide set
C3.2 Defense against disease (SL)
C3.2 Defense against disease (SL + HL) Questions and answers