Chapter 18-1: Finding Order in Diversity

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Chapter 18-1 Finding Order in Diversity

• Essential Questions
• How are living things organized for study?
• What is binomial nomenclature?
• How does Linnaeuss system of classification work?

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• Why classify?
• To name organisms group in logical order
• Taxonomy classification naming of organisms
• Avoids confusion of common names

Mountain Lion
Cougar
Puma
Panther
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• Assigning scientific names
• Early efforts at naming organisms
• Long, cumbersome names
• Ex Oak with deeply divided leaves with no hairs
  on their undersides and no teeth around their
  edges.

4

• Binomial nomenclature - Linnaeus
• 2 part scientific name
• 1st name capitalized, second lower case, all
  italicized
• Ex Ursus arctos

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• Linnaeuss system of classification
• Group or level of organism is a taxonomic
  category or taxon

Kingdom
Phylum
Class
Order
Family
Genus
Species
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Coral snake
Abert squirrel
Sea star
Grizzly bear
Black bear
Giant panda
Red fox
KINGDOM Animalia
PHYLUM Chordata
CLASS Mammalia
ORDER Carnivora
FAMILY Ursidae
GENUS Ursus
SPECIES Ursus arctos