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The Living World Test - 52

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The Living World Test - 52
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  • Question 1
    1 / -0
    The basic unit of classification is
    Solution
    A species is often defined as the largest group of organisms in which two individuals are capable of reproducing fertile offspring by interbreeding among themselves.
    So, the correct answer is 'Species'
  • Question 2
    1 / -0
    Arrange the following in the ascending order of Linnaean hierarchy.
    Solution
    Taxonomy is the branch of biology that deals with the identification and classification of organisms. Carolus Linnaeus is the father of taxonomy. He classified organisms from domain to species level of organization based on their characteristics. The broadest category is the domain. Species is the most basic level of classification. Thus the correct answer is option D.

  • Question 3
    1 / -0
    Number of obligate categories is 
    Solution
    The number of obligate categories while describing taxonomical hierarchy is 7. The correct hierarchy of classification of various taxons in descending order is given by 
    Kingdom → Phylum → Class → Order → Family → Genus → Species.
    So, the correct option is '7'.
  • Question 4
    1 / -0
    Hierarchy of categories was introduced by
    Solution
    Taxonomic hierarchy is the process of arranging various groups, class and other categories into successive levels of the biological classification. Taxonomic Hierarchy Categories were introduced by Linnaeus.
    The correct hierarchy of classification of various taxons in descending order is given as 
    Kingdom → Phylum → Class → Order → Family → Genus → Species
    So, the correct option is 'Linnaeus'.
  • Question 5
    1 / -0
    Neotype is 
    Solution
    A plant taxonomist doing research has to study type specimens in order to ensure that names associated with plants are correct. A neotype is nomenclature of the new type of species when the original type is not available. It is a specimen, selected when the holotype is unavailable or lost. Thus the correct answer is option B.
  • Question 6
    1 / -0
    Species is a
    Solution
    Species is a closely related interbreeding population which can easily exchange the genes. In a binomial nomenclature, the first part of a binomial is the genus to which the species belongs and the second part is called the specific name. The formation of distinct species during evolution is known as speciation.
    So, the correct answer is option B.
  • Question 7
    1 / -0
    A genus with a single species is
    Solution
    A genus comprising of only one species is termed a monotypic genus. It is a special case where a genus and a single species are simultaneously described. Example: The madrone butterfly is the only species in the monotypic genus Eucheira.
    So, the correct answer is option A. 
  • Question 8
    1 / -0
    Two organisms with different corerelated morphological characters belongs to 
    Solution
    • Since the given species only share correlated morphological characters, they cannot be considered as a biological species as they cannot interbreed' to produce fertile offsprings. 
    • Taxonomic species are defined as 'A natural taxon in classification has an invariant generalized or idealized pattern shared by all members of the group'.
    So, the correct option is 'Two taxonomic species'.
  • Question 9
    1 / -0
    ICZN was adopted in 
    Solution
    ICZN was adopted in 1964 with an object to assign a unique and scientific name of every taxon, it also regulates how these naming will be documented and used in literature. They provide universality in the naming or nomenclature.
    So, the correct option is '1964'.
  • Question 10
    1 / -0
    Which is not a category?
    Solution
    • The 7 different obligate taxonomic categories according to their hierarchy are
     Kingdom → Phylum → Class → Order → Family → Genus → Species.
    • An ecotype is a genetically different variety within species that is adapted to specific environmental conditions.
    So, the correct option is 'Ecotype'.
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