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Levels of Classification

Levels of Classification. Linneaus ’ Classification System. Based on a hierarchical classification that has seven main levels or taxa Kingdom Phylum Class Order Family Genus Species. general. specific.

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Levels of Classification

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  1. Levels of Classification

  2. Linneaus’ Classification System • Based on a hierarchical classification that has seven main levels or taxa • Kingdom • Phylum • Class • Order • Family • Genus • Species general specific

  3. Taxon (taxa plural) = a named group of organisms such as phylum Chordata or order Rodentia • Rank = a level in a classification scheme, such as phylum or order

  4. A Closer Look at the Kingdoms • First classification system was based on plants and animals • With the aid of microscopes, new organisms and cell types were discovered • Now a two-kingdom system is no longer useful • In this course we will use the six Kingdom system: • Bacteria • Archaebacteria • Protista • Fungi • Plants • Animals

  5. A Closer Look at the Kingdoms • In this course we will use the six Kingdom system: • Eubacteria • Archaebacteria • Protista • Fungi • Plants • Animals

  6. How are organisms divided into kingdoms? • The MAIN characteristics used to divide organisms into kingdoms are: • Cell type, complex or simple • Their ability to make food (nutrition) • The number of cells in their body (multicellularity) • How they reproduce • Presence/absence and type of a cell wall • Habitat

  7. Review of cell types • Eukaryote versus Prokaryote cells – can you see the difference?

  8. Kingdom Animalia

  9. Kingdom Plantae

  10. Kingdom Fungi

  11. Kingdom Protista

  12. Kingdom Eubacteria Helicobacter pylori

  13. Kingdom Archaebacteria Halobacterium

  14. Guess that Kingdom • What Kingdom do I belong to? • Animalia Charaxesbrutusnatalensis

  15. Guess that Kingdom • What Kingdom do I belong to? • Protista Paramecium

  16. Guess that Kingdom • What Kingdom do I belong to? • Plantae Athyriumfilix-femina

  17. Guess that Kingdom • What Kingdom do I belong to? I live in this hot spring ? • Archaebacteria

  18. Guess that Kingdom • What Kingdom do I belong to? • Fungi Amanita muscaria

  19. Guess that Kingdom • What Kingdom do I belong to? • Eubacteria Hyellastella

  20. Dichotomous Keys • a series of branching “either / or” choices designed to classify specimens

  21. A sample Dichotomous Key

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