levels of organization for life

1. organs

1.1. the heart

1.1.1. lungs

1.1.1.1. stomach

2. Atom

2.1. Molecules

2.1.1. Macromolecules

2.1.1.1. organcells

2.1.1.1.1. cells

3. molecules

3.1. Carbohydrates

3.1.1. two or more atoms

3.1.1.1. homonuclear

4. macromolecules

4.1. nucleic acids

4.1.1. made up of just four macromolecules

4.1.1.1. made up of amino acid

5. organells

5.1. mitochondrion

5.1.1. Centriole

5.1.1.1. Vacuole

6. cells

6.1. Blood Cells

6.1.1. Endothelial

6.1.1.1. microscopic organism called Paramecium

7. tissue

7.1. epithelial

7.1.1. muscular

7.1.1.1. connective

8. organ systems

8.1. Skeletal

8.1.1. Muscular

8.1.1.1. Urinary