Transcript 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
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Early Classification
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Aristotle, Greek philosopher 384-322 B.C.
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Plants
Animals
Early Classification
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Carolus Linnaeus, Swedish botanist 1707-1788
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Based on structural similarities
Binomial nomenclature – two word naming system
in Latin
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Genus species
Common name
Homo sapiens
humans
Classification Today
We still use the system Linnaeus used
 Taxonomic rankings
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Larger groups share traits
Kingdom
 Phylum
 Class
 Order
 Family
 Genus
 species
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Keys to evolutionary relationships
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Similar structure
Keys to evolutionary relationships
Similar structure
 Breeding behavior
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Keys to evolutionary relationships
Similar structure
 Breeding behavior
 Location
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Keys to evolutionary relationships
Similar structure
 Breeding behavior
 Location
 Chromosome structure
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Keys to evolutionary relationships
Similar structure
 Breeding behavior
 Location
 Chromosome structure
 Biochemistry
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