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Classification
1
Classification History
•Aristotle was the first person to organize or classify all organisms.
Some of his groups are still used today
•Karl von Linné, a Swedish naturalist, doctor, and botanist
simplified things by using two Latin names for every animal or
plant. He did this during the 18th century. This is still practiced
today.
•Linnaeus, as he was known, published Systema Naturae in 1735,
in which he described his plan for classifying organisms by their
simmilarities. His system is basically the same one we use today.
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Classification History
This is the dude!
I’m definitely
the dude!
3
Classification History, Continued
•Carl Woese and others (1990) suggested the need for 3 domains
– a level above kingdoms.
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Classification Basics
•TAXONOMY is the study of how scientists
classify.
•Modern classification system uses a series of
levels to organize.
•Classification begins with a broad group and
then moves to specifics.
Example
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Three Domains
•Archaea (archaebacteria)
•Bacteria (eubacteria)
•Eukarya (eukaryotes)
Three Domains and History
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