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Why Do Scientists Classify Organisms?

The classification of different organsims (taxonmoy) and why. 6 December 2010
by

Yonina Izsak

on 14 June 2011

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Transcript of Why Do Scientists Classify Organisms?

Domain Classifying Organisms Kingdom phylum Class Order Family Genus Species Why Do Scientists Classify Organisms? Scientists classify organisms to make them easier to study. Taxonomy is very useful to scientists because once an organism is classified they can already learn a lot about it.
Taxonomy The study of the way organisms are classified Taxonomy Levels Of Classification Domain Kingdom Phylum Class Order Family Genus Species What Are The Characteristics
Used To Classify Organisms Into Domains And Kingdoms? The characteristics used for classifying Domains are Archea, Eubacteria and Eukaryote.
Plants, Animals, Fungi, Protists, Eubacteria (Monera) and Archaebacteria are used for classifying Kingdoms.

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Yonina Izsak Domains The three domain system proposes that a commmon ancester cell gave rise to three different cell types, each representing a domain. Archaea
Contains no peptidoglycan
Prokayotic cells
Membranes composed of branched hydro carbon chains attached to glycerol by linkages
Often lives in extreme environments.
Contains rRNA Bacteria
Contains peptidoglycan
Prokayotic cellls
Membranes composed of unbranched fatty acid.
Contains rRNA Eukarya
Contains eukaryotic cells
Unbranched fatty acid chains
The cells that posess a wall contains peptidoglycan
Contains rRNA Kingdoms Plants
Multicellular
Autotrophs
Over 250,000 species
Second lagest kingdom Animals
Heterotrophs
Largest kingdom
Over 1 million known species Archaeabacteria
Unicellular
Found in extreme environments such as boiling hot water, places with no oxygen and that are very acidic Eubacteria
Complex
Unicellular
Most bacteria is classified here
Is found everywhere Fungi
Heterotrophs
Multicellular
Include mushrooms, mold and mildew Protists
Include all microscopic organisms that are not bacterias, plants, animals or fungi
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