1. 17.1 Classification

2. What do we do with evolutionary information?
Classification- grouping of objects or organisms based on a set of criteria.
Taxonomy- the discipline of biology primarily concerned with identifying, naming and classifying species based on natural relationships.
The name of a grouped organism is called a taxon.
We use the Linnaeus system of naming.

3. Classification
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5. Species and Genus A species is a specific type of organism. Ex: sapien
Genus is a group of species that are closely related and share a common ancestor.
Ex:Homo

6. Family, order, class, phylum
Family is the next higher taxon, consisting of similar, related genera.
Ex: homindae
Order contains related families.
Ex: Primate
Class contains related orders.
Ex: mammalia
Phylum contains related classes.
Ex: chordata

7. Kingdoms
There are 4-6 different kingdoms. 4-6 because the scientific community cannot decide on the division of protists and viruses.
The decided kingdoms are Protists (unicellular eukaryotes), Fungi (mushrooms, etc.), Plantae (plants), Monera (bacteria), and Animalia (animals and humans)

9. Kingdom & Domain Kingdom is made up of all the related phyla.
Ex: Animalia
Domain- this is the largest level of classification.
Not normally characterized in the Linnaeus system. There are 3 different domains: Prokarya (bacteria), Archaea, and Eukarya (humans). This classification is based on types of cells.

10. Animal Kingdom
The animal kingdom consists of vertebrates and invertebrates.
Vertebrates- having backbones
There are 5 types of vertebrates
Mammals
Amphibians
Birds
Reptiles
Fish
Invertebrates- not having backbones

11. Cladograms

12. Key Points
The evolutionary information collected by scientists is used to classify organisms into different groups.