Wednesday, December 15, 2010

Vestigeal organs are those which are

Q. Vestigeal organs are those which are
  1 Fully formed and functional
  2 Much reduced but functional
  3 Much reduced and functionless
  4 Fully formed but functionless
    Ans:3 

Q. The limbs of different mammals have evolved form a basic
  1 Pentadactyl plan
  2 Hexadactyl plan
  3 Bidactyl plan
  4 Adactyl
    Ans:1 

Q. The organisms that live inside alimentary canal are
  1 Symbionts
  2 Autotrophs
  3 Heterotrophs
  4 Saprotrophs
    Ans:1 

Q. The most primitive mammals are
  1 Carnivorous
  2 Herbivorous
  3 Omnivorous
  4 Insectivorous
    Ans:4 

Q. Seymouria represents the transitional stage between
  1 Amphibians and reptiles
  2 Pisces and amphibians
  3 Reptiles and mammals
  4 Birds and mammals
    Ans:1 

Q. The golden age of Dinosaurs was
  1 Palaeozoic
  2 Coenozoic
  3 Mesozoic
  4 Proterozoic
    Ans:3 

Q. The oldest era is
  1 Palaeozoic
  2 Mesozoic
  3 Coenozoic
  4 Proterozoic
    Ans:4 

Q. Animals belonging to different classes of Vertebrates have developed similar adaptational features to a particular type of habitat. This phenomenon is called
  1 Convergent evolution
  2 Adaptive radiation
  3 Mimicry
  4 Parallel evolution
    Ans:1 

Q. Vestigeal pelvic girdle and bones of hind limbs are characteristic of
  1 Whales
  2 Dolphins
  3 Seals
  4 Sharks
    Ans:1 

Q. Who considered evolution as due to mutation?
  1 Charles Darwin
  2 Lamarck
  3 Hugo de Vries
  4 Wallace
    Ans:3

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