Transcript Classification

Is your closet organized?
Living things are organized
into 6 kingdoms
6 Kingdoms-{3 domains}
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Archaebacteria
Eubacteria
Protists
Fungi
Plants
Animals
Classification
• The systematic
grouping of
organisms into
categories on the
basis of
relationships
between them.
• Also known as the
science of
taxonomy.
Why are things classified?
Helps us organize information AND communicate with others
EXAMPLES of things that we organize:
Supermarket aisles
Libraries
Classes
Teams/sports
Members of a family
Roads
Cities
Money
Human Taxonomy
» HUMANS
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Kingdom
Phylum
Class
Order
Family
Genus
Species
Animal
Chordata
Mammals
Primate
Hominadae
Homo
Sapien
KPCOFGS
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Kind
Professors
Can
Often
Fail
Good
Students
Early history(2,000 ya)
• Aristotle grouped everything into
simple groups such as animals or plants
• He then grouped animals
according to if they had blood
or didn’t have blood,
and if they had live young
or laid eggs, and so on…
Taxonomy
• Is the science of naming and classifying
organisms-has sub-groups and names
• Father of taxonomy
is Carl Linnaeus (1707-1778)
Binomial nomenclature
• C. Linnaeus developed a system that
gives a 2 word name to every organism.
• The 2 word naming system is called
binomial nomenclature
• It helps to avoid confusion
• It uses the genus and species name only
• Paperbark Maple
• Red Snakebark Maple
Acer griseum
Acer capillipes
• Japanese Maple
Acer palmatum
Panthera
Comprising the species:
Lion, tiger, jaguar, leopard on the basis of cranial features
Tiger- Panthera tigris
Lion- Panthera leo
• JaguarPanthera onca
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SNOW LEOPARD
also belongs to
the Panthera----added 2008
Rules used to write scientific
names
Homo sapiens
• An organism’s genus is always written first; the
organism’s species is always written second
• The genus is Capitalized; the species is
written in lower case
• Scientific names of organisms are always
italicized or underlined
Some common names
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Canis familiaris - dog
Felis domesticus - cat
Canis lupus - wolf
Vulpes vulpes - fox
Ichthyomyzon gagi - brook lamprey
Populus deltoides - cottonwood
Cercis canadensis - red bud
Diospyros virginiana - persimmon
Carya illinoensis - pecan
A dichotomous key
• is used to identify organisms that you do
not already know.
• A reference tool where a series of
choices between alternative characters
leads progressively to the identification of
the species.
• Means "two forks".