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Biology: Ch. 17 Test

21 Questions
Biology: Ch. 17 Test
Questions and Answers
  • 1. 
    Organisms are named and classified based on physical characteristics in:
    • A. 

      Evolutionary trees

    • B. 

      Linnaean taxonomy

    • C. 

      Cladograms

    • D. 

      Molecular clocks

  • 2. 
    Which of the following is the most abundant group of organisms on Earth?
    • A. 

      Protista

    • B. 

      Plants

    • C. 

      Bacteria

    • D. 

      Archaea

  • 3. 
    Which of the following lists Linnaean taxa in the correct order from general to specific?
    • A. 

      Phylum, order, family, genus

    • B. 

      Kingdom, order, class, phylum

    • C. 

      Family, phylum, genus, species

    • D. 

      Class, order, species, genus

  • 4. 
    In the Linnaean system of classification, which of the following is most commonly defined as a group of organisms that can breed and produce offspring?
    • A. 

      Phylum

    • B. 

      Species

    • C. 

      Genus

    • D. 

      Order

  • 5. 
    Which of the following uses mutation rates to measure evolutionary time?
    • A. 

      Phylogenies

    • B. 

      Binomial nomenclature

    • C. 

      Molecular clocks

    • D. 

      Clades

  • 6. 
    In the blank cladogram in Figure 17.1, what type of information would go on the lines labeled A?
    • A. 

      Clades

    • B. 

      Outgroupings

    • C. 

      Common ancestors

    • D. 

      Derived characters

  • 7. 
    In the cladogram in Figure 17.1, what type of information would go in the area labeled B?
    • A. 

      Clades

    • B. 

      Outgroupings

    • C. 

      Common ancestors

    • D. 

      Derived characters

  • 8. 
    How many domains are there in the most current tree of life?
    • A. 

      6

    • B. 

      5

    • C. 

      3

    • D. 

      2

  • 9. 
    • A. 

      2

    • B. 

      5

    • C. 

      3

    • D. 

      6

  • 10. 
    The modern classification system is mainly based on:
    • A. 

      Mutation rates

    • B. 

      Common ancestry

    • C. 

      Physical similarities

    • D. 

      Binomial nomenclature

  • 11. 
    Figure 17.2 shows one set of genetic differences between humans and other animals. By this measure, which listed species is most related to humans?
    • A. 

      Rabbit

    • B. 

      Mouse

    • C. 

      Turtle

    • D. 

      Chimpanzee

  • 12. 
    The name Canis lupis is an example of:
    • A. 

      A domain and kingdom

    • B. 

      One clade

    • C. 

      Binomial nomenclature

    • D. 

      A phylogeny

  • 13. 
    Which of the following types of evidence is considered the most accurate in classifying organisms, according to the majority of scientists?
    • A. 

      Anatomical

    • B. 

      Linnaean

    • C. 

      Physiological

    • D. 

      Molecular

  • 14. 
    Which of the following phrases describes a taxon?
    • A. 

      A group of organisms in a classification system

    • B. 

      A group of species that share no derived characters with others in a group

    • C. 

      A group that can breed and produce offspring

    • D. 

      A group that is larger than a kingdom or a domain

  • 15. 
    Which of the following contains the most members?
    • A. 

      Genus

    • B. 

      Order

    • C. 

      Family

    • D. 

      Class

  • 16. 
    • A. 

      3

    • B. 

      4

    • C. 

      5

    • D. 

      6

  • 17. 
    In the cladogram in Figure 17.1, what represents the common ancestor of all the included species?
    • A. 

      The line farthest left in section A

    • B. 

      The line farthest right in section A

    • C. 

      The lowest node on the cladogram

    • D. 

      The highest node on the cladogram

  • 18. 
    Which type of molecular clock is used to measure evolutionary time between the most distantly related organisms?
    • A. 

      Amino acid

    • B. 

      Nuclear DNA

    • C. 

      Ribosomal RNA

    • D. 

      Mitochondrial DNA

  • 19. 
    Which domain contains all organisms that have a nucleus?
    • A. 

      Bacteria

    • B. 

      Archaea

    • C. 

      Eukarya

    • D. 

      Protista

  • 20. 
    Figure 17.2 shows differences between humans and other animals at a molecular level. By this measure, which listed species is least related to humans?
    • A. 

      Rabbit

    • B. 

      Mouse

    • C. 

      Turtle

    • D. 

      Chimpanzee

  • 21. 
    Which of the following is the most specific taxon shared by the ashy-headed goose, Chloephaga poliocephala, and the ruddy-headed goose, Chloephaga rubidiceps?
    • A. 

      Kingdom

    • B. 

      Species

    • C. 

      Genus

    • D. 

      Order