Eight Major Taxonomic Ranks (Hierarchy of Biological Classification)

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Eight Major Taxonomic Ranks (Hierarchy of
Biological Classification)
Life
Domain
Kingdom
Phylum
Class
Order
Family
Genus
Species
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The Three Domain System of Life (The Tree of Life)
Domain - The highest taxonomic rank of organisms.
Introduced by Carl Woese in 1990.
Domain
Prokaryote
Eukaryote
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Prokaryotes are organisms whose cells lack a
nucleus while eukaryotes contain a nucleus.
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The Three Domain System of Life (The Tree of Life)
Domain
Prokaryote
Eukaryote
Eukarya
Archaea
Bacteria
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The Six Kingdoms
Animalia
Archaea
Fungi
Bacteria
Protista
Plantae
Eukarya
Archaea
Bacteria
Prokaryote
Eukaryote
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Single-Celled
Multi-Celled
Both
Archaea
Animalia
Bacteria
Fungi
Protista
Plantae
Eukarya
Archaea
Bacteria
Prokaryote
Eukaryote
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Asexual Reproduction
Sexual Reproduction
Both
Archaea
Animalia
Bacteria
Fungi
Protista
Plantae
Eukarya
Archaea
Bacteria
Prokaryote
Eukaryote
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Heterotrophic
Autotrophic
Archaea
Animalia
Bacteria
Fungi
Protista
Plantae
Eukarya
Archaea
Bacteria
Prokaryote
Eukaryote
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Archaea Domain
The organisms in this domain have no cell nucleus
nor any other membrane-bound organelles within
their cells.
Crenarchaeota
Euryarchaeota
Korarchaeota
Nanoarchaeota
Thaumarchaeota
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Bacteria Domain
Spherical Shaped
Rod Shaped
Other
Bacteria are usually smaller than plant or animal
cells.