| A | B |
| Prokayotes 70S* ribosomes | Oppositely Eukaryotes 80S* ribosomes |
| Domain Eukarya: | The Eukaryotes |
| The Eukaryotes | Unicellular organisms and Multicellular organisms |
| Cytology | cell morphology |
| Biochemistry: | the chemistry of life |
| Molecular biology | the function of DNA and derivatives |
| Physiology: | homeostasis, sensory processes,etc. |
| Biophysics | the physical forces and processes |
| Structural biology | subnanometer organization |
| Non-cellular biology | Viruses, Viroids, and Prions |