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The Living World Test - 44

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The Living World Test - 44
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  • Question 1
    1 / -0
    A randomly selected group of organisms from a family would show more genetic variation than a randomly selected group from a 
    Solution
    The family is a larger group constituting of more number of organisms as compared to the genus. When any random group is selected, the group of organisms from a family will exhibit more genetic variation than a randomly selected group from a genus due to the different organisms and diverse characters.
    Thus, the correct answer is option A. 
  • Question 2
    1 / -0
    In the given word 'Felidae', it is the .......... of the tiger having the generic name Felis.
    Solution
    • Genus is a group or assemblage of related species which resemble one another in certain Correlated characters. Correlated characters are those similar or common features which are used in the delimitation of a taxon above the rank of species. Lion, Tiger, Leopard, Jaguar are closely related species which have been placed in the genus Panthera.
    • The family is a taxonomic category which contains one or more related genera. All the genera of a family have some common features or Correlated characters. For example, The genera of cats (Felis) and leopard (Panthera) are included in the family Felidae.
    • Adding the suffix -'idae' to the type generic name forms the name of the family e.g. adding the suffix 'idae' to the type Generic name 'Homo' gives the name of the Family to which man belongs - Hominidae. 
    • Hence the word Felidae is the family of the tiger having the generic name felis. So the correct option is family.
  • Question 3
    1 / -0
    Which one of the following name is correctly matched with its particular name taxonomic category?
    Solution
    The scientific names on the basis of the binomial nomenclature are described with the help of two words. The first epithet is known as the genus and the second epithet is known as the species. Equus is the genus of the mammals which belongs to the family Equidae. This group includes the horses, zebras, etc. It consists seven species. 
    Thus, the correct answer is option D. 
  • Question 4
    1 / -0
    Identify the correct way to write the scientific name of mango.
    Solution
    According to binomial nomenclature, the genus name should begin with the capital letter and species name should begin with the small letter. The scientific name thus has two parts, both should be distinctly underlined when written or italicized when typed. Thus, the scientific name of mango should be written as Mangifera indica. It can also be written as M.indica.
    So, the correct answer is option C.
  • Question 5
    1 / -0
    What is the difference between the taxonomic categories, division and phylum?
    Solution
    Division is used in the place of phylum category in plants and phylum is used in animals.
    Phylum is a rank in the classification of organisms, below kingdom and above class. 
  • Question 6
    1 / -0
    Naming and classification of organisms is known as 
    Solution
    Cardiology is the branch of medicine that deals with diseases and abnormalities of the heart. 
    Neurology is a branch of medicine dealing with disorders of the nervous system. 
    Sociology is the scientific study of social behaviour or society, including its origins, development, organization, networks and institutions. 
    Taxonomy (biology), a branch of science that encompasses the description, identification, nomenclature and classification of organisms. 
  • Question 7
    1 / -0
    The classification system enables us to know___________.
    Solution
    • The classification system enables us to know the relationship between different groups of organisms.
    • Importance of classification:
    • It makes the study of a wide variety of organisms easy.
    • It gives us a good picture of all life forms at a glance.
    • It helps us understand the interrelationship among various groups of organisms.
    • It serves as a base for the development of other biological sciences such as biogeography, etc.
    • Various fields of applied biology such as agriculture, public health and environmental biology depend on the classification of pests, disease vectors, pathogens and components of an ecosystem.
  • Question 8
    1 / -0
    What is the scientific name of human being?
    Solution
    • Homo sapiens is the scientific name of human beings. 
    • Rana tigrina is a frog. 
    • Brassica rapa is a turnip.
    • Pavo cristatus is the Indian peacock.
    So, the correct answer is option A. 
  • Question 9
    1 / -0
    Sometimes different authors give different names to one and the same species. In such a situation
    Solution
    • A species is a group of living organisms consisting of similar individuals capable of exchanging genes or interbreeding. The species is the principal natural taxonomic unit, ranking below a genus.
    • Sometimes different authors give different names to one and the same species. In such a situation the name under which the species was first described is a valid name.
    • So,the correct answer is 'The name under which the species was first described is a valid name'
  • Question 10
    1 / -0
    A binomial scientific name contains 
    Solution
    Binomial nomenclature is the formal naming system for living things that all scientists use. It gives every species a two-part scientific name. For example, a ladybug found in the United States goes by the fancy name of Harmonia axyridis. The first part of a scientific name, like Harmonia, is called the genus. A genus is typically the name for a small group of closely related organisms. The second part of a scientific name, axyridis in this example, is the specific epithet. It is used to identify a particular species as separate from others belonging to the same genus. Together, the genus plus the specific epithet is the full scientific name for an organism. 
    Therefore, the correct answer is option B.
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