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Topic 5.3

Topic 5.3. Classification of Biodiversity. What are those??. Binomial Nomenclature. Universal system for naming organisms Developed by Carolus Linneaus 1707-1778 2 names system (Genus & species) Written in Latin (dead language) Earliest published names for species Plants 1753

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Topic 5.3

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  1. Topic 5.3 Classification of Biodiversity

  2. What are those??

  3. Binomial Nomenclature • Universal system for naming organisms • Developed by CarolusLinneaus 1707-1778 • 2 names system (Genus & species) • Written in Latin (dead language) • Earliest published names for species • Plants 1753 • Animals 1758

  4. Rules for Binomial Nomenclature • The Genus name begins with an upper case (capital) letter and the species name with a lower case (small) letter • In typed or printed text it is shown in italics • Homo sapiens • After it has been used once in a text, it can be abbreviated to the initial letter of the genus name and the full species name • H. sapiens

  5. Natural Classification • The genus and accompanying higher taxa consist of all the species that have evolved from one common ancestral species. • Will share many characteristics

  6. Reviewing classification • Taxonomists sometimes reclassify groups of species when new evidence shows that a previous taxon contains species that have evolved from different ancestral species

  7. Advantages of Natural Classification • 1. Identification of species is easier • Identify domain, then kingdom…..etc • 2. Because all of the members of a group in a natural classification have evolved from a common ancestor, they inherit similar characteristics

  8. Hierarchy of Taxa • Seven ranks of classification (from broadest to most specific) • Domain Dumb • Kingdom Kings • Phylum Play • Class Chess • Order On • Family Fine • Genus Grain • Species Sand

  9. The three domains • Eubacteria (prokaryotes) • Archaea (prokaryotes) • Eukarya (eukaryotes)

  10. Kingdoms • Plantae, Anamalia, fungi, protista are the main 4 that are accepted eukaryotic kingdoms • Archaebacteria and Eubacteria are the other two recognized kingdoms. • Those kingdoms are broken down into • 35 animal phyla • 12 plant phyla • 7 fungi

  11. Plant Phyla

  12. Plant phyla cont.

  13. Animal Phyla

  14. Animal phyla cont.

  15. Animal Classes • Currently there are 108 widely accepted animal classes. • You will be responsible for 5 classes of the chordata phyla • Birds, Mammals, amphibians, reptiles and fish.

  16. Characteristics of Animal classes

  17. Characteristics of Animal Classes Cont.

  18. Dichotomous Keys • Used to identify organisms based on structures and features • Each level includes two statements that refer to the same feature • One will be true and one will be false • The key will either identify the organism or prompt you to move on for further questioning

  19. Sample Dichotomous Key

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