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Biological classification
Biological classification
Biological classification
Biological classification
Biological classification
Biological classification
Biological classification
Biological classification
Biological classification
Biological classification
Biological classification
Biological classification
Biological classification
Biological classification
Biological classification
Biological classification
Biological classification
Biological classification
Biological classification
Biological classification
Biological classification
Biological classification
Biological classification
Biological classification
Biological classification
Biological classification
Biological classification
Biological classification
Biological classification
Biological classification
Biological classification
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Biological classification

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  • 1. Biological Classification
  • 2. Why classify? • Humans have developed classification systems in order to make sense of the abundant biological diversity that exists in nature.
  • 3. Taxonomy • the science of naming organisms and assigning them to groups • Taxonomists search for previously unknown organisms, determining their relationships to known organisms, and giving them names.
  • 4. Chordata Panthera The Biological Classification System • The system is hierarchical. – Larger groups are more general and smaller groups are more specific. – For example, the phylum Chordata includes both lions and lionfish, but the genus Panthera includes only lions.
  • 5. The Biological Classification System • The system is phylogenetic. – It is meant to reflect the evolutionary interrelatedness among groups. – For example, the grey wolf and the dog both are placed in the genus Canis because of their close evolutionary relationship.
  • 6. Seven Levels of Taxonomic Classification • Kingdom • Phylum • Class • Order • Family • Genus • Species
  • 7. Kingdom, Phylum…what? • An easy way to remember the classification levels: “King Philip Came Over From Great Spain” • Try to make up your own!
  • 8. Seven Levels of Taxonomic Classification for the… • Kingdom • Phylum • Class • Order • Family • Genus • Species Grizzly Bear
  • 9. Kingdom • The most general of the seven levels. • Most biologists currently recognize six different kingdoms: Archaebacteria, Eubacteria, Protists, Fungi, Plants, Animals
  • 10. Phylum (plural: phyla) • Each kingdom is subdivided into smaller, more specific groups called phyla.
  • 11. Class • Each phylum is subdivided into smaller groups called classes.
  • 12. Order • Each class is subdivided into smaller groups called orders.
  • 13. Family • Each order is subdivided into smaller groups called families.
  • 14. Genus (plural: genera) • Each family is subdivided into smaller groups called genera.
  • 15. Species • Each genus is subdivided into smaller groups called species. • The species is the most specific level of classification.
  • 16. Scientific Names • The scientific name of an organism contains two parts—the name of the genus and the name of the species.
  • 17. Writing Scientific Names • The rules for writing scientific names: -CAPITALIZE the first letter of the genus name. -Do not capitalize the species name. -Both names must be underlined or italicized. • Example: human = Homo sapiens
  • 18. Seven Levels of Taxonomic Classification for the… • Kingdom-Animalia • Phylum-Chordata • Class-Mammalia • Order-Carnivora • Family-Felidae • Genus-Panthera • Species-leo Lion
  • 19. Seven Levels of Taxonomic Classification for the… • Kingdom-Animalia • Phylum-Chordata • Class-Mammalia • Order-Primates • Family-Hominidae • Genus-Homo • Species-sapiens Huma n
  • 20. Seven Levels of Taxonomic Classification for the… • Kingdom-Protista • Phylum-Sarcodina • Class-Rhizopoda • Order-Amoebida • Family-Amoebidae • Genus-Amoeba • Species-proteus Amoeba
  • 21. Seven Levels of Taxonomic Classification for the… • Kingdom-Animalia • Phylum-Chordata • Class-Mammalia • Order-Carnivora • Family-Canidae • Genus-Canis • Species-familiaris Dog
  • 22. Seven Levels of Taxonomic Classification for the… • Kingdom-Plantae • Phylum-Tracheophyta • Class-Anthophyta • Order-Asterales • Family-Compositae • Genus-Taraxacum • Species-officinale Dandelion
  • 23. Seven Levels of Taxonomic Classification for the… • Kingdom: Animalia • Phylum: Chordata • Class: Mammalia • Order: Xenarthra • Family: Myrmecophagidae • Genus Tamandua Collared Ant eat er
  • 24. Assignment (Due Monday) • Find and write down all seven major levels of taxonomic classification for the organism of your choice.

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