classification
DESCRIPTION
Classification. Grouping similar organisms together. Taxonomy. science of identifying, naming and classifying organisms first developed by Carl Linneaus in 1750’s based on morphology (body shape/form) uses a 2 part Latin naming system called binomial nomenclature - PowerPoint PPT PresentationTRANSCRIPT
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ClassificationClassificationGrouping similar organisms together
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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
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species further grouped into different levels (taxa)
each level higher, organisms are less related
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PhylogenyPhylogenyevolutionary development of a gp
of organismsuse fossils, DNA analysis &
proteinsmore similar DNA & proteins are
more closely related 2 things are
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Phylogenetic TreesPhylogenetic Treeshypothesis of the evolutionary
relationships
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CladesCladestip of a branch on a phylogenetic
treeshows an ancestor species and
all its descendants
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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
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Male Female
Rap Pop From Napanee Not From Napanee