Classification of Living Things

Scientists classify living things based on characteristics that living things share. 

Two-part Scientific Name

  1. Genus: capitalized, similar species
  2. Species: lowercase, members of same species can reproduce & have fertile offspring

Taxonomy: science of describing, classifying, and naming living things

 Eight-Level System to Classify Organisms: DKPCOFGS

  • Each level is called taxon

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  1. Domain
  2. Kingdom 
  3. Phylum
  4. Class
  5. Order
  6. Family
  7. Genus
  8. Species

Domain: 

  • Largest difference among organisms in classification
  1. Bacteria

   

  1. have NO nucleus
  2. live in an “everyday environment”
    1. Archaea 

   

  1. have NO nucleus
  2. are EXTREMOPHILES: 

       1. harsh conditions: hot areas where other organisms can not survive  2. ex. Hot Springs

  1. Eukarya

   

  1. Made up of all eukaryotes
  2. Cells with nucleus and membrane bound organelles

Kingdoms in Eukaraya

  1. Protista

   

  1. Single -celled or simple multicellular organisms
  2. Like algae and slime molds
    1. Plantae

   

  1. plants make food photosynthesis, they are found on land and in writer
    1. Fungi

   

  1. Yeasts, mold, mushrooms
  2. Get energy by absorbing materials
  3. Fungi are decomposes
    1. Animalia

   

  1. Lack cells walls
  2. Animals get nutrients by eating other organisms

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