Download Classification - Science

Classification
The systematic grouping of organisms into
categories on the basis of evolutionary or
structural relationships between them; taxonomy
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Domain
Any of three primary divisions of living systems
that rank above a kingdom in taxonomic systems
and are based on similarities of DNA sequences
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Kingdom
Any of the major categories into which
living organisms of the domain Eukaryota
classified
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Phylum
A major taxonomic division of living
organisms that contain one or more
classes
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Class
A taxonomic category ranking below a
phylum or division and above an order
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Family
A taxonomic category of related organisms
ranking below an order and above a genus;
usually consists of several genera
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Genus
A taxonomic category ranking below a family and
above a species and generally consisting of a
group of species exhibiting similar characteristics
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Species
Category of taxonomic classification, ranking
below a genus or subgenus and consisting of
related organisms capable of interbreeding
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Plants
Any photosynthetic, eukaryotic, multicellular,
containing chloroplasts, having cell walls, and
lacking the power of locomotion
http://en.wikipedia.org
Animals
Multicellular organisms; nonphotosynthetic metabolism; have
locomotive capacity
http://en.wikipedia.org
Protists
Eukaryotic organisms; include a variety of
unicellular, colonial, and multicellular
organisms
http://en.wikipedia.org
F un g i
Eukaryotic organisms; lack chlorophyll
and vascular tissue; includes yeasts,
molds, and mushrooms
http://en.wikipedia.org
Archaebacteria
Single-celled organisms lacking
organelles or a nucleus; often live in
extreme environments
http://en.wikipedia.org
Eubacteria
http://www.clker.com
A large group of bacteria characterized
by a rigid cell wall and, in motile types,
flagella; the true bacteria
Archaea
Prokaryotic cells; extremophiles
http://en.wikipedia.org
Bacteria
Prokaryotic cells; very diverse group
http://www.nih.gov
Eukaryota
Eukaryotic cells; grouped into the
plant, animal, fungi and protist
kingdoms
http://en.wikipedia.org
Viruses
Small, non-cellular life forms that
must infect host cells to reproduce
http://www.clker.com
Order
A taxonomic category ranking below a family and
above a species and generally consisting of a
group of species exhibiting similar characteristics
http://commons.wikimedia.org
Taxonomy
The classification of organisms in an
ordered system that shows natural
relationships
http://askabiologist.asu.edu