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The Living World Test - 35

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The Living World Test - 35
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Weekly Quiz Competition
  • Question 1
    1 / -0
    The suffix "-oideae" is used for
    Solution
    The International cod for Botanical Nomenclature gives a set of rules and recommendation for the scientific names of plants. According to it, the suffix 'oideae; is used for the taxonomic names of subfamilies of plants, algae and fungi. 
    The suffix used for the tribe is '-eae', for the family is '-aceae' and for the class is '-opsida'. 
    Thus, the correct answer is option D. 
  • Question 2
    1 / -0
    S. A. Waksman was a well known
    Solution
    Selman Abraham Waksman was a Ukrainian-born American biochemist, was one of the world's foremost authorities on soil microbiology. After the discovery of penicillin, he played a major role in initiating a calculated, systematic search for antibiotics among microbes.
  • Question 3
    1 / -0
    Biological species are kept separate from closely related species inhabiting the same geographical region by reproductive isolating mechanism, which is called as____________.
    Solution
    The reproductive characteristics which prevent species from fusing is the isolating mechanisms. Isolating mechanisms are particularly important in the biological species concept, in which species of sexual organisms are defined by reproductive isolation, i.e., a lack of gene mixture.
  • Question 4
    1 / -0
    Principles of bionomial nomenclature proposed by Linnaeus are contained in his book.............
    Solution
    • "Binomial system of nomenclature", was developed by Linnaeus in his book Philosophia Botanica in the year 1751, which is the first textbook of descriptive systematic botany and botanical Latin.
    • Historia Plantarum is the book written by Theophrastus, who is popularly known as The Father of botany.
    • Species Plantarum is the book written by Carl Linnaeus, originally published in 1753, which lists every species of plant known at the time, classified into genera. 
    • Flora Lapponica is an account of the plants of Lapland written by botanist, zoologist and naturalist Linnaeus. 
    So the correct option is 'Philosophia Botanica'.
  • Question 5
    1 / -0
    Botanical name of amla is 
    Solution
    Emblica officinalis - Amla 
    Zingiber officinale - Ginger 
    Ocimum sanctum - Tulsi 
    Medicago sativa - Alfalfa
    So, the correct answer is option B.
  • Question 6
    1 / -0
    Suffix for sub species is
    Solution
    Taxon (plural: taxa) represents taxonomic group of any rank. Each plant belongs to a hierarchy of taxa which are assigned taxonomic ranks. The seven essential ranks of taxa in descending order are kingdom, division/phylum, class, order, family, genus and species. 
    Each of these taxonomic ranks is assigned a “suffix” to that refers to their position in the taxonomic hierarchy. The name of a subdivision ends with “phytina”, that of subclass ends with “oideae” and the name of suborder ends with “ineae”. Subspecies is the only taxonomic category under “species” and hence, they are not given a specific “suffix” but are represented as trinomials. 
    For example- subspecies of rice is Oryza sativa sativa. Thus, the correct answer is option D.
  • Question 7
    1 / -0
    Select the group which shares maximum number of common characters.
    Solution
    In biology, a species is one of the basic units of biological classification and a taxonomic rank. A species is often defined as the largest group of organisms where two hybrids are capable of reproducing fertile offspring, typically using sexual reproduction.
    Being the lowest taxon at a hierarchical level, species has maximum similarity among themselves.
  • Question 8
    1 / -0
    A species which is capable of showing subvarieties, race or demes is known as 
    Solution
    A Polytypic species is the one with many species and geographical races. 
    A monotypic species is the one which conatins a single population without any subspecies. Allopatric species are those which are formed as a result of geographical isolation. Thus, the correct answer is option C.
  • Question 9
    1 / -0
    Individuals of same species having non-genetic differences due to environment are called as
    Solution
    Ecophene or epharmones or morphologically -changed forms belong to the same genotypes but having different types of phenotypes due to environmental factors and hence not affected by genes. Such changes are temporary and reversible. If one types of ecophene are transplanted into an environment of another type of ecophene, the differences would disappear.
    Thus, the correct answer is C.
  • Question 10
    1 / -0
    Which of the following book most impressed the opinion of taxonomists?
    Solution
    Darwin proposed the theory of 'natural selection' in his book "the origin of species". Natural selection refers to the unequal ability of individuals to survive and reproduce based on suitability of their inherited characters to prevailing environmental conditions. He explained the process of evolution through his book which makes it more impressive. Thus, the correct answer is option D.
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