More guides on this topic
- Classification and biodiversity – WJEC
- Cell division and stem cells – WJEC
- Interactive activity: Mitosis - WJEC
- DNA and inheritance – WJEC
- Variation – WJEC
- Mutation – WJEC
- Evolution – WJEC
- Homeostasis – WJEC
- The role of the kidneys in homeostasis – WJEC
- Micro-organisms and their applications – WJEC
- Disease, defence and treatment – WJEC
- Video playlist
