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Page 1: Classification

ClassificationClassificationGrouping similar organisms together

Page 2: Classification

TaxonomyTaxonomyscience of identifying, naming and

classifying organismsfirst developed by Carl Linneaus in

1750’sbased on morphology (body

shape/form)uses a 2 part Latin naming system

called binomial nomenclature1st word is the genus, 2nd the speciesHomo sapien (H. sapien)Ursus americanus Ursus maritimus

Page 3: Classification

species further grouped into different levels (taxa)

each level higher, organisms are less related

Page 4: Classification

PhylogenyPhylogenyevolutionary development of a gp

of organismsuse fossils, DNA analysis &

proteinsmore similar DNA & proteins are

more closely related 2 things are

Page 5: Classification

Phylogenetic TreesPhylogenetic Treeshypothesis of the evolutionary

relationships

Page 6: Classification

CladesCladestip of a branch on a phylogenetic

treeshows an ancestor species and

all its descendants

Page 7: Classification

Dichotomous KeyDichotomous Keyway of determining the correct

species of an organism

• it uses a series of paired comparisons to sort organisms into smaller and smaller groups

• ex Musicians

Page 8: Classification

Male Female

Rap Pop From Napanee Not From Napanee

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