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1 Classification copyright cmassengale. 2 There are 13 billion known species of organisms There are 13 billion known species of organisms This is only.

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Presentation on theme: "1 Classification copyright cmassengale. 2 There are 13 billion known species of organisms There are 13 billion known species of organisms This is only."— Presentation transcript:

1 1 Classification copyright cmassengale

2 2 There are 13 billion known species of organisms There are 13 billion known species of organisms This is only 5% of all organisms that ever lived! This is only 5% of all organisms that ever lived! New organisms are still being found and identified everyday New organisms are still being found and identified everyday Species of Organisms copyright cmassengale

3 3 What is Classification? Classification is the arrangement of organisms into groups based on their similarities Classification is also known as taxonomy copyright cmassengale

4 4 Confusion in Using Different Languages for Names copyright cmassengale

5 5 Latin Names are Understood by all Taxonomists copyright cmassengale

6 6 Carolus Linnaeus 1707 – 1778 18th century Classified organisms by their structure Developed the naming system: binomial (2 name) copyright cmassengale

7 7 Standardized Naming Binomial nomenclature used Binomial nomenclature used Genus species Genus species Turdus migratorius American Robin copyright cmassengale

8 8 Binomial Nomenclature Which TWO are more closely related? copyright cmassengale

9 9 Classification Groups There is a hierarchy of groups (taxa) from broadest to most specific There is a hierarchy of groups (taxa) from broadest to most specific Domain, Kingdom, Phylum, Class, Order, Family, Genus, species Domain, Kingdom, Phylum, Class, Order, Family, Genus, species copyright cmassengale

10 10 Hierarchy-Taxonomic Groups Domain Kingdom Phylum Class Order Family Genus Species BROADEST GROUP Most Specific copyright cmassengale

11 11copyright cmassengale

12 12 Three domains Three domains Archaea and Bacteria are unicellular prokaryotes (no nucleus or membrane-bound organelles) Archaea and Bacteria are unicellular prokaryotes (no nucleus or membrane-bound organelles) Eukarya are more complex and have a nucleus and membrane- bound organelles Eukarya are more complex and have a nucleus and membrane- bound organelles Domains copyright cmassengale

13 13 Domains copyright cmassengale

14 14

15 15 ARCHAEA Kingdom - ARCHAEBACTERIA Probably the 1 st cells to evolve Found in: – Sewage Treatment Plants (Methanogens) – Thermal or Volcanic Vents (Thermophiles) – Hot Springs or Geysers that are acid – Very salty water (Dead Sea; Great Salt Lake) - Halophiles copyright cmassengale

16 16 ARCHAEAN copyright cmassengale

17 17 BACTERIA Kingdom - EUBACTERIA Some may cause DISEASE Found in ALL HABITATS except harsh ones Important decomposers for environment Commercially important in making cottage cheese, yogurt, buttermilk, etc. copyright cmassengale

18 18 Live in the intestines of animals copyright cmassengale

19 19 Domain Eukarya is Divided into Kingdoms Protista (protozoans, algae…) Protista (protozoans, algae…) Fungi (mushrooms, yeasts …) Fungi (mushrooms, yeasts …) Plantae (multicellular plants) Plantae (multicellular plants) Animalia (multicellular animals) Animalia (multicellular animals) copyright cmassengale

20 20 Protista Most are unicellular Most are unicellular Some are multicellular Some are multicellular Some are autotrophic, while others are heterotrophic Some are autotrophic, while others are heterotrophic copyright cmassengale

21 21 Fungi Multicellular, except yeast Multicellular, except yeast Absorptive heterotrophs (digest food outside their body & then absorb it) Absorptive heterotrophs (digest food outside their body & then absorb it) Cell walls made of chitin Cell walls made of chitin copyright cmassengale

22 22 Plantae Multicellular Multicellular Autotrophic Autotrophic Absorb sunlight to make glucose – Photosynthesis Absorb sunlight to make glucose – Photosynthesis Cell walls made of cellulose Cell walls made of cellulose copyright cmassengale

23 23 Animalia Multicellular Multicellular Ingestive heterotrophs (consume food & digest it inside their bodies) Ingestive heterotrophs (consume food & digest it inside their bodies) Feed on plants or animals Feed on plants or animals copyright cmassengale

24 24copyright cmassengale

25 25 Basis for Modern Taxonomy Homologous structures (same structure, different function) Homologous structures (same structure, different function) Similar embryo development Similar embryo development Molecular Similarity in DNA, RNA, or amino acid sequence of Proteins Molecular Similarity in DNA, RNA, or amino acid sequence of Proteins copyright cmassengale

26 26 Homologous Structures (BONES in the FORELIMBS) shows Similarities in mammals. copyright cmassengale

27 27 Similarities in Vertebrate Embryos copyright cmassengale

28 28 Cladogram Diagram showing how organisms are related based on shared, derived characteristics such as feathers, hair, or scales copyright cmassengale

29 29 Primate Cladogram copyright cmassengale

30 30copyright cmassengale WRITE YOUR SUMMARY

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