The Living Organisms unit examines the main groups of living organisms​.

• 4. Algae and plankton: Focuses on small, microscopic organisms.
• 5. Plants: Explains the basic structures and reproductive strategies of plants. Examines different plant species. In addition, different vegetation zones are discussed. 
• 6. Invertebrates: Examines the mollusc, crustacean and insect species that inhabit water ecosystems.
• 7. Fish: Discusses the basic structures and reproductive strategies of fish.Introduces the most common Finnish fish species. 
• 8. Amphibians: Discusses amphibians and their connection with water ecosystems.
• 9. Reptiles: The story of the development of life continues as reptiles and their adaptations to living on land are discussed. 
• 10. Birds: Focuses on birds and their ability to fly.
• 11. Mammals: Examines the special characteristics of mammals.