Download 17.1 Classification

17.1 Classification
Think about how things are
grouped in a store or in your
kitchen to help create order.
Classification
Classification – the grouping of objects
based on similarities
 Taxonomy – branch of
biology that groups and
names organisms based
on characteristics

Early Classification

Aristotle, Greek philosopher 384-322 B.C.


Plants
Animals
Early Classification

Carolus Linnaeus, Swedish botanist 1707-1788


Based on structural similarities
Binomial nomenclature – two word naming system
in Latin


Genus species
Common name
Homo sapiens
humans
Classification Today
We still use the system Linnaeus used
 Taxonomic rankings


Larger groups share traits
Kingdom
 Phylum
 Class
 Order
 Family
 Genus
 species

Keys to evolutionary relationships

Similar structure
Keys to evolutionary relationships
Similar structure
 Breeding behavior

Keys to evolutionary relationships
Similar structure
 Breeding behavior
 Location

Keys to evolutionary relationships
Similar structure
 Breeding behavior
 Location
 Chromosome structure

Keys to evolutionary relationships
Similar structure
 Breeding behavior
 Location
 Chromosome structure
 Biochemistry
