the major lineages of life
Download
Skip this Video
Download Presentation
THE MAJOR LINEAGES OF LIFE

Loading in 2 Seconds...

play fullscreen
1 / 11

THE MAJOR LINEAGES OF LIFE - PowerPoint PPT Presentation


  • 124 Views
  • Uploaded on

THE MAJOR LINEAGES OF LIFE. MRS. SANDY GOMEZ. Taxonomy Schemes. Two K ingdom S ystem (Carl Linnaeus ) Five Kingdom System (Robert Whittaker ) Three Domain System ( Carl Woese ). THE TWO KINGDOM SYSTEM. Initially used by Linneus Divided all life forms into : Plants Animals.

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'THE MAJOR LINEAGES OF LIFE' - linus


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
taxonomy schemes
TaxonomySchemes
  • TwoKingdomSystem(Carl Linnaeus)
  • FiveKingdomSystem(Robert Whittaker)
  • ThreeDomainSystem (Carl Woese)
the two kingdom system
THE TWO KINGDOM SYSTEM
  • Initiallyused by Linneus
  • Dividedalllifeformsinto:
    • Plants
    • Animals
the five kingdom system
THE FIVE KINGDOM SYSTEM
  • Initiallyused by Robert H. Whittaker
  • He dividedorganismsinto 5 kingdoms, accordingtotheirtype of cell, eatinghabits and movement.
  • Recognizedthetwotypes of cells:
    • Prokaryotes (1 kingdom)
    • Eukaryotes (4 kingdoms)
the five kingdom system2
THE FIVE KINGDOM SYSTEM
  • According to Linneaus:
    • Plants are autotrophic in nutritional mode, making their food by photosynthesis.
    • Fungi are heterotrophic organisms that are absorptive in nutritional mode. Most fungi are decomposers.
    • Animals live by ingesting food and digesting it within specialized cavities.
    •  Protista consisted of all eukaryotes that did not fit the definition of plants, fungi, or animals. Most of them are unicellular.
the five kingdom system3
THE FIVE KINGDOM SYSTEM
  • Like any classification scheme, the five-kingdom system is not a natural fact but a human construct.
  • Is one attempt to order the diversity of life into a scheme that is useful and reasonable. 
  • But, eventually, pointed out some problems:
    • There are two distinct lineages of prokaryotes.
    • The diverse eukaryotes formerly collected in the kingdom Protista.
the three domain system
THE THREE DOMAIN SYSTEM
  • Introducedby Carl Woese
  • The three domains, are essentially super-kingdoms, a taxonomic level even higher than the kingdom level.
    • Bacteria
    • Archaea
    • Eukarya
  • Scheme that is used today
  • Schemes change with new scientific discoveries
ad