levels of organization for life

1. macromolecule

1.1. lipids

1.1.1. fat

1.1.1.1. biologic

2. organelles

2.1. tiny structure inside of a cell

2.1.1. ribosome

2.1.1.1. vacuole

3. cells

3.1. basic building blocks of living things

3.1.1. human body is composed of trillions of cells

3.1.1.1. all with their own specialised function

4. tissues

4.1. There are four main types of tissue: muscle

4.1.1. epithelial

4.1.1.1. connective

5. organs

5.1. organ system

5.1.1. organism

6. organs

6.1. organ system

6.1.1. organism

7. organs

7.1. organ system

7.1.1. organism

8. organs

8.1. organ system

8.1.1. organism

9. atoms

9.1. molecule

9.1.1. macromolecule

9.1.1.1. organelles

9.1.1.1.1. cells

10. molecules

10.1. water

10.1.1. hydrogen atoms

10.1.1.1. carben

11. organs

11.1. organ system

11.1.1. organism

12. organs

12.1. organ system

12.1.1. organism

13. organs

13.1. organ system

13.1.1. organism

14. organs

14.1. organ system

14.1.1. organism

15. organs

15.1. organ system

15.1.1. organism

16. organs

16.1. organ system

16.1.1. organism

17. organs

17.1. organ system

17.1.1. organism

18. organs

18.1. organ system

18.1.1. organism