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Evolution Test - 5

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Evolution Test - 5
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Weekly Quiz Competition
  • Question 1
    1 / -0
    All the living organisms on the earth constitute the
    Solution
    All the living organisms on the earth constitute the biosphere.The biosphere is the global sum of all ecosystems.
  • Question 2
    1 / -0
    A link between the living and non-living is provided by
    Solution
    A link between the living and non-living is provided by viruses.A virus is a small infectious agent that replicates only inside the living cells of other organisms. Viruses can infect all types of life forms, from animals and plants to microorganisms, including bacteria and archaea.
  • Question 3
    1 / -0
    The ultimate source of organic variation is
    Solution
    The ultimate source of organic variation is mutation.A mutation is a permanent change of the nucleotide sequence of the genome of an organism, virus, or extrachromosomal DNA or other genetic elements.
  • Question 4
    1 / -0
    Who gave the theory of spontaneous generation?
    Solution
    The theory of spontaneous generation is given by Van Helmonth.
  • Question 5
    1 / -0
    Why can life not originate from inorganic compounds at present?
    Solution
    Because of high amount of oxygen in the atmosphere, life cannot originate from inorganic compounds at present.
  • Question 6
    1 / -0
    Which of the following is a set of homologous organs?
    Solution
    Among the given options, hind limbs of birds and reptiles is a set of homologous organs.
  • Question 7
    1 / -0
    Which organs are represented by hands of man, wings of bat and flippers of seal?
    Solution
    Organs such as bat's wing, wings of birds, seal's flipper, forelimb of a horse, and human arm have a common underlying anatomy that was present in their last common ancestors; therefore their forelimbs are homologous organs.
  • Question 8
    1 / -0
    Which of the following is not a vestigial organ in man?
    Solution
    Vermiform appendix, plica semilunaris and ear muscles are vestigial organs in humans.
  • Question 9
    1 / -0
    Which of the following is a vestigial organ of python?
    Solution
    Hind limbs of python are vestigial in nature.
  • Question 10
    1 / -0
    Which of the following examples best explains 'atavism'?
    Solution
    An atavism is an evolutionary throwback, such as traits reappearing which had disappeared generations before. Among the given options, atavism is best explained by babies born with vestigial tail.
  • Question 11
    1 / -0
    Which of the following is the study of the fossils?
    Solution
    Study of fossils is called paleontology. It includes the study of fossils to determine organisms' evolution and interactions with each other and their environments.
  • Question 12
    1 / -0
    During which of the following periods were dinosaurs abundant?
    Solution
    Dinosaurs were abundant in mesozoic period. The period, which spans from about 252 million years ago to about 66 million years ago, was also known as the age of reptiles or the age of dinosaurs.
  • Question 13
    1 / -0
    Homosapiens fossilis is the scientific name for
    Solution
    Homosapiens fossilis is the scientific name for Cro-magnon man.Cro-Magnon is a common name that has been used to describe the first early modern humans (early Homo sapiens sapiens) that lived in the European Upper Paleolithic.
  • Question 14
    1 / -0
    Which of the following characteristics distinguishes monkeys, apes and man from the other mammals?
    I. Hands eminently adapted for grasping
    II. An excellent vision and keen sense of hearing
    III. A poor sense of smell
    IV. Highly developed brain
    Solution
    An excellent vision and keen sense of hearing, a poor sense of smell, highly developed brain distinguishes monkeys, apes and men from the other mammals.
  • Question 15
    1 / -0
    Dinosaur is
    Solution
    Dinosaur is a reptile. They first appeared during the Triassic period, 231.4 million years ago, and were the dominant terrestrial vertebrates for 135 million years, from the beginning of the Jurassic (about 201 million years ago) until the end of the Cretaceous (66 million years ago) period.
  • Question 16
    1 / -0
    From which of the following organisms have 'protherians' been evolved during the course of evolution?
    Solution
    During the course of evolution, protherians have been evolved from reptiles. Protherians are the mammals which lay eggs, example is platypus which is native to australia..
  • Question 17
    1 / -0
    Which of the following would be easily fossilised?
    Solution
    Among the given options, tooth can be easily fossilised. They are made of dentin, a hard calcified tissue that does not easily decompose.
  • Question 18
    1 / -0
    In which of the following periods do we find first evidence of land plants?
    Solution
    The first evidence of land plants was seen in the Paleozoic era.The era began with the breakup of one supercontinent and the formation of another. Plants became widespread. And the first vertebrate animals colonized land.
  • Question 19
    1 / -0
    Which of the following examples best explain the atavism?
    Solution
    An atavism is an evolutionary throwback, such as traits reappearing which had disappeared generations before. Among the given options, atavism is best explained by long, thick and dense hair.
  • Question 20
    1 / -0
    Which of the following is the study of the fossils?
    Solution
    Study of fossils is called paleontology.It includes the study of fossils to determine organisms' evolution and interactions with each other and their environments.
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