Classifications of life are too numerous to enumerate, here's an overview of the classifications from broadest to narrowist:
| Classification | Contains Related | 
|---|---|
| Kingdom | phyla | 
| Phylum | classes | 
| Class | orders | 
| Order | families | 
| Family | genera | 
| Genus | species | 
| Species | organisms | 
In the classification of life, a genus contains many related __________.