Classification

Cards (23)

  • What is the purpose of using an evolutionary tree in biology?
    To describe the relationships between organisms
  • What did scientists realize about species as more were discovered?
    They often have characteristics in common
  • Who began to classify species into different categories in the 1700s?
    Scientist Carl Linnaeus
  • Into how many kingdoms did Linnaeus divide all living organisms?
    Two kingdoms
  • What are the categories Linnaeus divided each kingdom into?
    • Kingdom
    • Phylum
    • Class
    • Order
    • Family
    • Genus
    • Species
  • What mnemonic can help you remember the classification categories?
    King Phillip Came Over For Good Soup
  • If given the classification of an organism, what might you be asked to fill in?
    A missing part of the classification
  • What is the binomial system in classification?
    A naming system using genus and species
  • What is the binomial name for the zebra?
    Equus quagga
  • What is the binomial name for the polar bear?
    Ursus maritimus
  • What is the key fact about Linnaeus's classification system?
    It is based on observable characteristics
  • What major advances in biology have occurred since Linnaeus's time?
    Microscopes and DNA analysis
  • Who developed the three domain system?
    Scientist Carl Woese
  • What are the three domains in the three domain system?
    Archaea, Bacteria, and Eukaryota
  • What type of conditions do Archaea often thrive in?
    Extreme conditions such as hot springs
  • What type of bacteria live in the human digestive system?
    True bacteria
  • What does the domain Eukaryota include?
    Animals, plants, fungi, and protists
  • How do scientists create evolutionary trees?
    By using classification data and DNA
  • What is a challenge scientists face when studying extinct organisms?
    The fossil records of many species are incomplete
  • What does an evolutionary tree show about species?
    How closely related organisms are to each other
  • What do species one and two in an evolutionary tree represent?
    They are closely related to each other
  • What do species one, two, and three in an evolutionary tree share?
    A common ancestor
  • Where can you find plenty of questions on classification and evolutionary trees?
    In the revision workbook