Classification

• What is the advantage of using a binomial system to name species?

  • It lets scientists discuss individual species
  • Each species has a unique name
• Which 18th Century scientist developed the traditional classification system for classifying living things?

  Carl Linnaeus
• Which international system is commonly used to classify organisms?

  The Linnaean classification system
• What is the correct order of groups in the Linnaean classification system? 

  kingdom, phylum, class, order, family, genus, species.
• Which two groups in the classification system are used in the binomial naming system?

  • Species 
  • genus
• What is the binomial name for humans?

  Homo sapiens
• How do we write the binomial name of a species?

  • All lower case except the first letter of the genus
  • All in italics 
• The binomial name for grey wolves is Canis lupus. 

  What are the species and genus names for the grey wolf?


  • Species name is lupus
  • Genus name is Canis

  The binomial name tells you the genus and species. So for Canis lupus, Canis is the genus and lupus is the species.
• Which 20th century scientist used microscopes and modern technology to develop the three domain system to classify organisms?

  Carl Woese
• Carl Woese developed the three domain system to classify organisms. What are the three domains?

  • Bacteria 
  • Eukaryotes 
  • Archaea
• Which of the following are considered Eukaryotes?

  • plants
  • animals
  • fungi
  • protoctists
• What do evolutionary trees show?

  The evolutionary relationship between the organisms being studied
• What do the branch points show on an evolutionary tree (circled red in the above diagram)?

  The divergence of a single population/species into two separate populations/species 

  
• Which group is most closely related to crocodiles? 

  birds

  
• Which group(s) of animals have hair?

  • rabbits
  • chimpanzes

  
• Which group has a bony skeleton but no limbs?

  Fish