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The Living World Test - 81

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The Living World Test - 81
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Weekly Quiz Competition
  • Question 1
    1 / -0
    Which of the following is correct combination for wheat?
    Solution
    Wheat belongs to genus Triticum. Triticum represents to free-threshing wheat. Family Poaceae or Gramineae is a big and nearly universal family of grasses. It contains cereal grasses and the flowers in the family are typically small, enclosed by bracts, and are arranged in inflorescence. Order Poales contains species whose flowers are wind pollinated (mostly). Other than that seeds are usually stored with starch like in wheat and rice. Class Monocotyledonae contain seed plants that develop an embryo with a single cotyledon and parallel-veined leaves. It includes grasses, lilies, palms, and orchids. 
    Thus, the correct option is 'Genus: Triticum, Family: Poaceae, Order: Poales, Class: Monocotyledonae'.
  • Question 2
    1 / -0
    Mayr's biological concepts of species is mainly based on
    Solution
    Mayr proposed the origin of species in his book 'Systematics and the Origin of Species'. He told that when a group of the population becomes separated from its original group by time or geography, then there is an evolution of new traits in them and they cannot interbreed. This isolation creates new species.

    So, the correct answer is 'Reproductive isolation'.
  • Question 3
    1 / -0
    Binomial system of nomenclature for plants is effect from
    Solution
    Species Plantarum was published on 1st May 1753 by Carl Linnaeus, which lists every species of plant known at the time, classified into genera.
    Thus answer is - '    1 / 5 / 1753.
  • Question 4
    1 / -0
    Which one of the taxonomic aid give comprehensive account of complete compiled information of any one genus or family at a particular time?
    Solution
    The monograph is a book or essay which gives a comprehensive account of all available information about the genus, family or higher category of grouping at the time of its publication.It is a highly useful taxonomic aid. Thus, the correct answer is option D.
  • Question 5
    1 / -0
    Botanical name of tomato is
    Solution
    Lycopersicon is a genus in the flowering plant family Solanaceae. The tomato is the edible, often red fruit/berry.
    The onion (Allium cepa), also known as the bulb onion or common onion, is used as a vegetable and is the most widely cultivated species of the genus Allium.
    The potato is a starchy, tuberous crop from the perennial nightshade, Solanum tuberosum. The word "potato" may refer either to the plant itself or, more commonly, the edible tuber.
    Saccharum officinarum is sugarcane. It is a large, strong-growing species of grass in the genus Saccharum. It originated in southeast Asia and is now cultivated in tropical and subtropical countries worldwide for the production of sugar and other products.
  • Question 6
    1 / -0
    The botanical name of Berseem (Egyptian clover) is
    Solution
    Trifolium alexandrinum is the scientific name of Egyptian clover, also called as  berseem clover. It is an annual clover cultivated mostly in irrigated sub-tropical regions, and used as fodder, mainly for cattle and milk buffalo. It was an important winter crop in ancient Egypt and was introduced into northern India in the early nineteenth century.
  • Question 7
    1 / -0
    For declaration of new species of higher plants what characters are used?
    Solution
    The higher plants are classified in the group of angiosperms which includes the flowering plants. The criteria which is used for the classification are the floral characters in which the structures of the anther and carpel are taken into account. The morphological, as well as the internal characters, are considered later. Thus, the correct answer is option A. 
  • Question 8
    1 / -0
    Type specimen selected from the original material in case, the holotype is missing, is called as
    Solution
    • The holotype is a specimen or illustration which is designated as the representative of a species and is used for identification of the new specimen. 
    • A lectotype is a specimen or any other material which is selected from original material as cited by the author when holotype is not available.
    •  A syntype is any of two or more specimens that were simultaneously designated as a type when no holotype was designated.
    •  A specimen or any other material which serve as type specimen in absence of holotype, isotype, paratype or syntype is referred to as neotype
    • .A type specimen is an element to which name of a taxon is associated irrespective of being it the original name or synonym. A type specimen can serve as holotype/syntype/neotype/isotope, depending on the way of its selection. 

    Thus, the correct answer is option A.
  • Question 9
    1 / -0
    The term phylum in taxonomy was given by 
    Solution
    The phylum is the taxonomic rank which is placed below kingdom and above the class. It is used to describe the classification of animals. Division is the similar term used for plants. The term phylum was coined by G. L. Cuvier. He proposed the term phylum in the classification taxonomy.
    So, the correct answer is option B. 
  • Question 10
    1 / -0
    All the cats in the world belong to ............... same species.
    Solution
    • Felis domesticus is any domesticated member of the genus Felis. Cat, name applied broadly to the carnivorous mammals constitutes the family Felidae, and specifically to the domestic cat, Felis catus. 
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