Classification of life
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Classification of Life. Chapter 15 . Classification. Taxonomy - science of classifying living organisms. Aristotle. Greek philosopher Divided life into two parts:. Carolus Linnaeus (1750’s). Binomial Nomenclature – two word system Two names Genus – category containing similar species.

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Classification
Classification

  • Taxonomy- science of classifying living organisms


Aristotle
Aristotle

  • Greek philosopher

  • Divided life into two parts:


Carolus linnaeus 1750 s
Carolus Linnaeus (1750’s)

  • Binomial Nomenclature – two word system

    • Two names

    • Genus – category containing similar species.

    • species

    • (scientific name)


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


Dichotomous keys
Dichotomous Keys

  • Used to identify and name species


Phylogeny
Phylogeny

  • - evolutionary history of a species

  • - anatomy

  • - biochemistry

  • - six kingdoms

  • - geologic time scale

  • - 4 billion years of life




Eubacteria
Eubacteria

  • - prokaryotes

  • - no nucleus or organelles

  • - unicellular

  • - often heterotrophs

  • - common bacteria

  • - strong capsule

  • - blue-green algae







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