2. The Cell Theory 1. All organisms are made up of one or more cells. 2. Cells are the basic unit of life. 3. All cells arise from pre-existing cells

3. All living Things are composed of CELLS bacteria amoeba mice horses flowers yeast trees mushrooms protozoadiatoms

4. Viruses are not considered cells! HIV Cold chicken pox

5. Cells that EXIST by themselves are called single-celled organisms amoeba bacteria

6. Organisms that are made up of more than one cell are called multicellular organisms plants animals

7. Other names and spellings Single-celled Singlecelled Unicellular Multi-celled multicellular

8. Where do Cells come from?

9. + = ? Spontaneous Generation

10. + = Spontaneous Generation

11. + = Spontaneous Generation

12. All cells come from pre-existing cells in process called Cell Division

14. Recite the Cell Theory  1.  2.  3.