Molecular biology Cell biology Physiology Nanotechnology Biotechnology Pharmacology Microbiology
2 3 4 5 6 7 Bacteria
3 4 5 6 7 1 Virus
4 5 6 7 1 2 Eukaryote
5 6 7 1 2 3 Prokaryote
6 7 1 3 4 Fungus
7 1 2 Colloid 4 5 Protist