System of classification based upon similarities in structure.
Developed by: Linnaeus , a Swedish botanist in the 18th century. Linneaus used Latin names because they would not change over time.
Binomial Names
Genus + species
Ex: Musca + domestica "House Fly"
| Name | Structure | Prokaryotic/Eukaryotic |
| Monera (BACTERIA) | Unicellular | Prokaryotic |
| Protista (AMEBA) | Unicellular | Eukaryotic |
| Fungi | Multicellular | Eukaryotic |
| Plants Autotrophic | Multicellular | Eukaryotic |
| Animals Heterotrophic | Multicellular | Eukaryotic |
Explain why wolves and domesticated dogs are now considered in the same species.