Traits Clades 1. Binary fission 2. Photosynthetic 1. Domain Archaea 3. Potassium ion transport to balance osmotic pressure 2. Domain Bacteria 4. Surfaces covered with charged amino acids 3. Eubacteria 5. Thin peptidoglycan wall 4. Cyanobacteria 6. Thick peptidoglycan wall 7. Heterotrophic exclusively 8. Autotrophic exclusively 9. Oscillating movement 10. Nitrogen-fixation 11. Fragmentation 12. Hormogonia 13. Heterocysts .