Unit 8 Target 1: Classification And Cladograms

12 Questions | Total Attempts: 432

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Unit 8 Target 1: Classification And Cladograms


Questions and Answers
  • 1. 
    Cytochrome C is a protein used in the electron transport chain. This table shows short sections of Cytochrome C’s amino acid sequences (using single letter abbreviations) for 5 different organisms.Use this data to determine which organism most likely shares the most recent common ancestor with humans.
    • A. 

      Organism 1

    • B. 

      Organism 2

    • C. 

      Organism 3

    • D. 

      Organism 4

  • 2. 
    These animals are all placed in the vertebrate class Amphibia and the order Anura.- wood frog, Rana sylvatica- bullfrog, Rana catesbeiana- western toad, Bufo boreas- spadefoot toad,  Scaphiopus hammondiWhat is the most likely conclusion about the evolutionary relationship between or among these organisms? 
    • A. 

      The wood frog and bullfrog are better jumpers than the western toad and the spadefoot toad.

    • B. 

      The wood frog and bullfrog share a more recent common ancestor than do the western toad and the spadefoot toad.

    • C. 

      The western toad and the spadefoot toad share a more recent common ancestor than do the wood frog and the bullfrog.

    • D. 

      The western toad and the spadefoot toad both evolved in western North America, while the wood frog and the bullfrog evolved in the tropics.

  • 3. 
    The following cladogram illustrates the proposed evolutionary relationships of several extant species (A-E).According to the cladogram, which of the following species is the most recent common ancestor to Species A and Species E?
    • A. 

      Species J

    • B. 

      Species H

    • C. 

      Species G

    • D. 

      Species F

  • 4. 
    An animal has these characteristics:- Many more than 8 jointed legs on a segmented body- 2 pairs of legs attached to each body segment- Lacks biting jaws Use the key below to determine what animal this is.
    • A. 

      Dragonfly

    • B. 

      Millipede

    • C. 

      Sea star

    • D. 

      Slug

  • 5. 
    In what kingdom would scientists classify a multicellular, nonmotile, autotrophic organism?
    • A. 

      Animalia

    • B. 

      Plantae

    • C. 

      Fungi

    • D. 

      Protista

  • 6. 
    Scientists discover a new invertebrate in the rainforests of Argentina. This small creature has:- exoskeleton- 2 body segments- 8 legs- 8 eyes- chelicerae (pair of appendages near the mouth)- jointed appendagesTo what known animal would this new invertebrate be most closely related?
    • A. 

      Mosquito (Insecta)

    • B. 

      Lobster (Crustacean)

    • C. 

      Millipede (Myriapoda)

    • D. 

      Scorpion (Arachnida)

  • 7. 
    Based on their taxonomic classification, which 2 organisms share the most recent common ancestor? 
    • A. 

      Squid and octopu (same class)

    • B. 

      Lobster and eel (same kingdom)

    • C. 

      Chimpanzee and gorilla (same family)

    • D. 

      Iguana and mouse (same phylum)

  • 8. 
    The organisms of what kingdom possess these traits?- Eukaryotic cells- Photosynthetic- Cellulose cell walls
    • A. 

      Eubacteria

    • B. 

      Fungi

    • C. 

      Plantae

    • D. 

      Monera

  • 9. 
    Lions and tigers both belong to genus Panthera. Cheetahs belong to the genus Achinonyx. Scientists group theses 3 types of cats together at the next taxonomic level. What is the most specific taxonomic level that lions, cheetahs, and tigers share?
    • A. 

      Class

    • B. 

      Family

    • C. 

      Kingdom

    • D. 

      Order

  • 10. 
    What level of biological taxa includes Chordata, Molluska, Echinodermata, Arthropoda, and Cnidaria?
    • A. 

      Family

    • B. 

      Genus

    • C. 

      Kingdom

    • D. 

      Phylum

  • 11. 
    Based on their scientific names, what is the most accurate conclusion about the relationship of the organisms Homo erectus and Homo neanderthalus? 
    • A. 

      They are genetically similar.

    • B. 

      They are the same species.

    • C. 

      They are in different genera.

    • D. 

      They are in different kingdoms.

  • 12. 
    An entomologist identified a new species of beetle in a South American rain forest. The beetle has all the features of the darkling beetle family Tenebrionidae and closely resembles other darkling beetles of the genus Tenebrio. What should the entomologist do next? 
    • A. 

      Give the beetle a new genus and family names.

    • B. 

      Give the beetle a new species name not used in the genus Tenebrio.

    • C. 

      Name the beetle after the species it is most similar to.

    • D. 

      Discard the beetle because it is not found in existing taxonomy.

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