1. Levels of Organization

2. Structure= the way something is made…. “what it is”

3. Function= the job it (structure) performs “what it does”

4. Cell

5. Cell= smallest unit of structure and function for a living thing

6. Cell Ex: Bone Cell, Blood Cell, Nerve Cell, Skin Cell, Plant Cell

7. Tissue

8. Tissue= group of the same type of cells that perform a specialized function

9. Tissue Ex: Skin Tissue, Muscle Tissue, Bone Tissue

10. Organ

11. Organ= group of tissues that perform a specialized function

12. Organ Ex: Brain, Stomach, Heart, Bone, Skin, Liver, Leaf

13. Organ Systems

14. Organ System= group of organs that perform a complex function

15. Organ System Ex: Digestive System, Circulatory, Nervous, Skeletal

16. Organism

17. Organism= group of organ systems working together to make 1 living thing

18. Population

19. Population= all the members of 1 kind of organism (species) in a particular area

20. Community

21. Community= all the populations living together in an area (biotic factors)

22. Ecosystem

23. Ecosystem= the interaction of all the biotic and abiotic factors in an area

24. Biome

25. B IOME = Similar ecosystems on earth together

26. Biosphere

27. Biosphere= everywhere on Earth that living things can exist

28. Earth’s crust, oceans, lower level of atmosphere

29. Levels of Organization