Classification Of Organisms Test

30 Questions | Total Attempts: 77

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Classification Of Organisms Test

Welcome to the electronic frontier biology classroom for the 21st Century. Biologists have named and classified over 5 million species. Over time, scientists have created various systems of classification to organize their knowledge of the huge number of species. You have unlimited attempts to earn a high grade. Good Luck!


Questions and Answers
  • 1. 
    Which of the following taxons have been added to the original list of "levels of classification"? (HINT: this is a multiple answer question.)
    • A. 

      Domain

    • B. 

      Variety

    • C. 

      Class

    • D. 

      Subspecies

    • E. 

      Division

  • 2. 
    What is the scientific name for the common eastern box turtle?  (HINT: use correct scientific name format)
  • 3. 
    Aristotle classified animals on the basis of ....
    • A. 

      Their size

    • B. 

      Their evolutionary history

    • C. 

      Where they lived

    • D. 

      What they ate

    • E. 

      Their appearance

  • 4. 
    The main criterion used in Linnaeus's system of classification is an organism's....
    • A. 

      Evolutionary history

    • B. 

      Morphology

    • C. 

      Taxonomy

    • D. 

      Hierarchy

    • E. 

      Cytological studies

  • 5. 
    Each subset within a class of organisms is called a(n)_____
    • A. 

      Domain

    • B. 

      Order

    • C. 

      Family

    • D. 

      Genus

    • E. 

      Phylum

    • F. 

      Division

  • 6. 
    In the scientific name of an organism, the first part is called a(n)_____.
    • A. 

      Species Identifier

    • B. 

      Variety

    • C. 

      Subspecies

    • D. 

      Genus

    • E. 

      Kingdom

    • F. 

      Class

  • 7. 
    What is the scientific name for the Red Oak?
    • A. 

      Quercus rubra

    • B. 

      Quercus Rubra

    • C. 

      Quercus phellos

    • D. 

      Quercus alba

    • E. 

      Quercus Alba

  • 8. 
    What is the scientific name for the honeybee?  (HINT: use the correct format for writing this answer.)
  • 9. 
    In 1942, biologist Ernst Mayr of Harvard University proposed a biologically based definition of species. _____ _____ as a group of natural populations that are interbreeding or that could interbreed. These populations are reproductively isolated from other such groups.
    • A. 

      Species hybrids

    • B. 

      Biological species

    • C. 

      Biological hybrids

    • D. 

      Genetic species

    • E. 

      Genetic hybrids

  • 10. 
    Which organism is most similar to the sandhill crane, Grus canadensis?
    • A. 

      Branta canadensis

    • B. 

      Falcipennis candensis

    • C. 

      Grus americana

    • D. 

      Recurvirostra americana

    • E. 

      Chaos chaos

  • 11. 
    The scales of snakes and the scales of pangolins....
    • A. 

      Are shared derived characters

    • B. 

      Are homologous structures

    • C. 

      Suggest descent from a common ancestor

    • D. 

      Evolved independently in the two groups

    • E. 

      Are morphological structures

  • 12. 
    In cladistics, what termis used for a group of organisms that includes an ancestor and all of its descendents?
    • A. 

      Class

    • B. 

      Clade

    • C. 

      Phylum

    • D. 

      Species

    • E. 

      Kingdom

  • 13. 
    Please check those mythical organisms found in the list below.
    • A. 

      Tree kangaroo

    • B. 

      Pegasus

    • C. 

      Centaur

    • D. 

      Griffin

    • E. 

      Gifboom

    • F. 

      Chimera

    • G. 

      Dragon

  • 14. 
    Please check those which are not mythical organisms found in the list below.
    • A. 

      Tree kangaroo

    • B. 

      Pegasus

    • C. 

      Honeybee

    • D. 

      Griffin

    • E. 

      Gifboom

    • F. 

      Chimera

    • G. 

      Dragon

  • 15. 
    What is the scientific name for the dandelion?  (HINT:  Please do not forget to use the correct format.)
  • 16. 
    Please identify those scientists who aided in the development of the classification system(s).
    • A. 

      Theophrastus

    • B. 

      Gessner

    • C. 

      Ray

    • D. 

      Linnaeus

    • E. 

      Haeckel

    • F. 

      Whittaker

    • G. 

      Hennig

    • H. 

      Woese

    • I. 

      Michaels

    • J. 

      Hess

  • 17. 
    _____ _____ uses fossil constraints and rates of molecular change to deduce the time in geologic history.
    • A. 

      Molecular Cladistics

    • B. 

      Molecular Clock

    • C. 

      Molecular Chromosomes

    • D. 

      Negative Selection

  • 18. 
    The molecular-clock model of evolutionary relationships is based on the assumption that changes in macromolecule sequences.....
    • A. 

      Are not random

    • B. 

      Are affected by natural selection

    • C. 

      Are greater in species with more-distant common ancestors

    • D. 

      Occur at different rates in different organisms

    • E. 

      Are random

  • 19. 
    Scientists classify organisms based on many kinds of information. Please check the types of data used.  (HINT:  there are multiple answers for this question.)
    • A. 

      Appearance

    • B. 

      Structure

    • C. 

      Breeding patterns

    • D. 

      DNA sequences

    • E. 

      Sex

    • F. 

      Religion

  • 20. 
    _____ is a method of analysis that uses similarities of organisms to infer evolutionary relationships.  (HINT: Please observe grammar rules.)
  • 21. 
    What type of classification system is observed in the image below?
    • A. 

      Taxonic classification

    • B. 

      Cladistic Taxonomy

    • C. 

      Evolutionary Systematics

    • D. 

      Field Guide

    • E. 

      Binomial nomenclature

  • 22. 
    Systematists often represent their hypothesis in the form of a phylogenetic diagram, also called a phylogenetic tree.
    • A. 

      True

    • B. 

      False

  • 23. 
    _____ names sixth kingdom and three additional domains.
    • A. 

      Ray

    • B. 

      Linnaeus

    • C. 

      Woese

    • D. 

      Hennig

    • E. 

      Gessner

  • 24. 
    In _____, Swiss naturalist Conrad Gessner published Historia Animalium, categorizing thousands of animals into quadrupeds, birds, fish, and snakes.
  • 25. 
    In _____ American molecular biologist Carl Woese proposed a six-kingdom system that divided the then-existing kingdom Monera into two new kingdoms; Archaebacteria and Eubacteria.
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