BIO153H5 Lecture Notes - Convergent Evolution, Synapomorphy, Thylacosmilus
Document Summary
Artificial classification s ystem grouping things together that don"t belong to the same group: aristotle recognized heir similarities to start ordering their diversities. Carl con linne (1707 -1778: came up with. Not too different from what aristotle started. Based on natural characteristics: heart, reproduction, warm / cold blooded. Now we use a wide range of characteristics. It should be exclusive to distinguish between species. Yet inclusion, so every species have a name that"s unique. System that is universal (ie. using latin names) Reflect the natural groups looking at their ecology, geography: want it to be a national system. Have specific names attached to only one species and reflect the evolutionary relationships. Reflect the natural system that is wanted to be included as well as displaying to taxonomic relationships. Looking at the distance of branches, we can easily asses how closely species are related to each other. Taxon any groupings (could be a species, genus, depends) (taxa is plural form)
