Classification of Life

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Classification of Life

• Chapter 15

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Classification

• Taxonomy- science of classifying living
  organisms

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Aristotle

• Greek philosopher
• Divided life into two parts

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Carolus Linnaeus (1750s)

• Binomial Nomenclature two word system
• Two names
• Genus category containing similar species.
• species
• (scientific name)

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• Man Dog Grasshopper
• Kingdom Animalia Animalia Animalia
• Phylum Chordata Chordata Arthropoda
• Class Mammalia Mammalia Insecta
• Order Primates Carnivora Orthoptera
• Family Hominidae Canidae Locustidae
• Genus Homo Canis Schistocerca
• Species sapiens familiaris americana

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Dichotomous Keys

• Used to identify and name species

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Phylogeny

• - evolutionary history of a species
• - anatomy
• - biochemistry
• - six kingdoms
• - geologic time scale
• - 4 billion years of life

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Six Kingdoms of Life

• notes

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3 Domains of Life
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Eubacteria

• - prokaryotes
• - no nucleus or organelles
• - unicellular
• - often heterotrophs
• - common bacteria
• - strong capsule
• - blue-green algae

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Archaebacteria
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Protist
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Fungus
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Plants
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Animals
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