UPSC Biology Ecology and Ecosystem Biodiversity Question Bank

done Evolution and Ecology Biodiversity Total Questions - 34

• question_answer1)
  Fossils are
  A)
  remains of deadly plants and animals that are extinct done clear
  B)
  remains of plants and animals that are still surviving done clear
  C)
  both [a] & [b] done clear
  D)
  none of the above done clear
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• question_answer2)
        Speciation is
  A)
  making of independent species done clear
  B)
  macro evolution done clear
  C)
  new environmental ways for existence done clear
  D)
  all of the above done clear
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• question_answer3)
        The scientific name for the maximum modem man among these is
  A)
  Homosapiens    done clear
  B)
           Human species done clear
  C)
  Neanderthalensis done clear
  D)
           Homo sapiens done clear
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• question_answer4)
        Modem man evolved from
  A)
  Java man        done clear
  B)
           Peking man done clear
  C)
  Neanderthal man done clear
  D)
           cro-magnon man done clear
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• question_answer5)
  The book 'Origin of Species' was written by
  A)
  Darwin         done clear
  B)
  Lamarck done clear
  C)
  Mendel                   done clear
  D)
  de Vries done clear
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• question_answer6)
       

  	Column-I		Column-II
  A.	Wing of a bat and wing of a bird	P.	darwin
  B.	Dihybrid ratio	Q.	Mendel
  C.	Natural selection	R.	Analogous organ
  D.	Arm of a man and wing of a bird	S.	Homologous organs

   
  A)
  A-S;   B-P;   C-Q;   D-R done clear
  B)
  A-R;   B-Q;   C-P;   D-S done clear
  C)
  A-R;   B-Q;   C-P;   D-S done clear
  D)
  A-S;   B-P;   C-P;   D-Q done clear
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• question_answer7)
        Consider the following statements :

  A. Life can originate on earth from pre-existing life only.

  B. The atmosphere of the primitive earth was reducing.

  Which of these statement(s) is/are correct?
  A)
  A only                   done clear
  B)
           B only done clear
  C)
  Both A and B     done clear
  D)
           Neither A nor B done clear
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• question_answer8)
        The remains of mummies denote
  A)
  The kind of preservative technique in that era done clear
  B)
  Evolutionary reveal done clear
  C)
  Historical reveals done clear
  D)
  All of the above done clear
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• question_answer9)
        Vestigial organs are those present in the living beings without functions gives and mark the correct option for vestigeal organs in humans
  A)
  Vermifrom appendix done clear
  B)
  mammary glands of male done clear
  C)
  nicitating membrane in eyes done clear
  D)
  all of the above done clear
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• question_answer10)
        In evolution which animals class is between entirely water living to land
  A)
  fishes and reptile done clear
  B)
  fishes & reptiles done clear
  C)
  reptiles and Amphibion done clear
  D)
  reptiles and birds done clear
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• question_answer11)
        To which of the following types of animals are Salamanders closely related? [NDA]
  A)
  Dolphins and Whales done clear
  B)
  Frogs and Toads done clear
  C)
  Prawns and Crabs done clear
  D)
  Seals and Walruses done clear
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• question_answer12)
        In terms of the evolution of organisms, which one among the following is the most advanced? [NDA]
  A)
   Bat             done clear
  B)
           Pigeon done clear
  C)
   Shark                    done clear
  D)
           Vulture done clear
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• question_answer13)
        Analogous organs are
  A)
  different in origin but perform similar functions. done clear
  B)
  common in origin and perform common functions. done clear
  C)
  common in origin but perform different functions. done clear
  D)
  different in origin and perform different functions. done clear
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• question_answer14)
  The term 'Survival of Fittest' was used by
  A)
  Charles Darwin        done clear
  B)
  Herbert Spencer done clear
  C)
  Jean Baptiste     done clear
  D)
  Hugo de Vries done clear
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• question_answer15)
       

  	Column-I (Name of the Scientist)		Column- II (Contributions)
  A.	Charles Darwin	I.	Mutation theory
  B.	Lamarck	II.	Germ plasm theory
  C.	Hugo de Vries Zoologique	III.	Philosophic
  D.	Ernst Haeckel species	IV.	The Origin of
  E.	August Weismann	V.	Biogenetic law
  		VI.	Essay on population

   
  A)
  A-IV;  B-III;  C-1;  D-V;  E-II done clear
  B)
  A-IV;  B-III;  C-V;  D-I;  E-VI done clear
  C)
  A-IV;  B-VI;  C-V;  D-III;  E-I done clear
  D)
  A-II;  B-III;  C-I;  D-V;  E-II done clear
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• question_answer16)
        What was the most significant trend in the evolution of modern man (Homo sapiens) from his ancestors?
  A)
  Shortening of jaws done clear
  B)
  Binocular vision done clear
  C)
  Increasing cranial capacity done clear
  D)
  Upright posture. done clear
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• question_answer17)
        Who proposed that the first form of life come from pre-existing non- living molecules?
  A)
  Oparin and Haldane done clear
  B)
  de Vries and Haldane done clear
  C)
  Darwin and Lamarck done clear
  D)
  Louis Pasteur and Miller done clear
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• question_answer18)
        A biogeographic region with significant reservoir of biodiversity that is under threat from humans is called as [NDA]
  A)
  bio endangered region done clear
  B)
  bio diversity hotspot done clear
  C)
  bio diversity reservoir done clear
  D)
  environmentally endangered region done clear
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• question_answer19)
        Which one of the following processes of weathering belongs to both mechanical and chemical weathering? [NDA]
  A)
  Crystallization         done clear
  B)
  Exfoliation done clear
  C)
  Hydration               done clear
  D)
           Carbonation done clear
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• question_answer20)
        In the context of ecology and environment, what does the Red Data Book pertain to? [CDS]
  A)
  Details of harmful levels of various pollutants done clear
  B)
  A complete list of all endangered plants and animals done clear
  C)
  A description of the consequences of nuclear holocaust done clear
  D)
  A description of the sociological and psychological consequence of genetically modified plants and animals done clear
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• question_answer21)
        Which of the following is not a bird? [CDS]
  A)
  Bat             done clear
  B)
           Emu done clear
  C)
  Kiwi            done clear
  D)
           Ostrich done clear
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• question_answer22)
        The branches of this tree root themselves like new trees over a large area. The roots then give rise to more trunks and branches. Because of this characteristic and its longevity, this tree is considered immortal and is an integral part of the myths and legends of India. Which tree is this? [CDS]
  A)
  Banyan                  done clear
  B)
           Neem done clear
  C)
  Tamarind (Imli)   done clear
  D)
           Peepal done clear
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• question_answer23)
        Which one of the following is not a feature of eutrophic lakes? [CDS]
  A)
  Blooms are frequent in eutrophic lakes done clear
  B)
  Plant nutrient flux is high done clear
  C)
  Primary productivity is low done clear
  D)
  Dominated by blue green algae done clear
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• question_answer24)
        Polar bears are carnivores and prey on many arctic birds and fishes. However, under natural conditions, no one found polar bears predating any penguin. This is because [CDS]
  A)
  penguins have chemical substance in their muscles which is toxic to polar bears done clear
  B)
  penguins are gregarious and always move in groups. Therefore, a polar bear cannot approach them done clear
  C)
  polar bears and penguins never coexist under natural conditions. The former lives in the North Pole while the latter lives in the South Pole done clear
  D)
  None of these done clear
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• question_answer25)
       

  	List-I (Indian wild life species)		List-II (Scientific names) [IAS Prelim]
  A.	Asiatic wild ass tragocamelus	1.	Boselaphus
  B.	Barasingha	2.	Cervus duvauceli
  C.	Chinkara	3.	Equus hemionns
  D.	Nilgai	4.	Gazella gazella

   
  A)
  A-2;   B-3;   C-1;   D-4                         done clear
  B)
  A-3;   B-2;   C-4;   D-1 done clear
  C)
  A-2;   B-3;   C-4;   D-1 done clear
  D)
  A-3;   B-2;   C-1;   D-4 done clear
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• question_answer26)
        With reference to soil conservation, consider the following practices: [IAS Prelim]

  1. Crop rotation

  2. Sand fences

  3. Terracing

  4. Wind breaks

  Which of the above are considered appropriate methods for soil conservation in India.
  A)
  1, 2, and 3 only   done clear
  B)
           2 and 4 only done clear
  C)
  1, 3 and 4 only   done clear
  D)
           1, 2, 3 and 4 done clear
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• question_answer27)
        All are ecosystems except
  A)
  Forest                    done clear
  B)
           Grassland done clear
  C)
  Garden                  done clear
  D)
           Sun done clear
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• question_answer28)
        All producers are
  A)
  Food making organisms done clear
  B)
  Make food in the presence of sunlight with chlorophyll done clear
  C)
  All autotrophs done clear
  D)
  All the above done clear
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• question_answer29)
        Which one of these is not a food chain
  A)
  Trees \[\to \] Deer \[\to \] Lion done clear
  B)
  Plants \[\to \] Man \[\to \] Anaconda done clear
  C)
  Plants \[\to \] Insects \[\to \] Frog \[\to \] Snake \[\to \] Kite done clear
  D)
  Small \[\to \] plants \[\to \] Crabs \[\to \] Fish \[\to \] Swan \[\to \] bird done clear
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• question_answer30)
        The last chain of food are
  A)
  Producers               done clear
  B)
           Decomposers done clear
  C)
  Parasites                done clear
  D)
           None of the above done clear
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• question_answer31)
        The accumulation of non-biodegradable substances in a food chain in increasing amount at each higher trophic level is known as:
  A)
  Accumulation         done clear
  B)
  Eutrophication done clear
  C)
  Pollution                done clear
  D)
           Bio magnification done clear
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• question_answer32)
        Flow of energy in an ecosystem is always
  A)
  Unidirectional done clear
  B)
  Bidirectional done clear
  C)
  Multi directional done clear
  D)
  No specific direction done clear
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• question_answer33)
        Consider the following statements :

  A. Earth is kept warm due to greenhouse flux.

  B. The reproduction and other activities of living organisms are affected by the abiotic components of ecosystem.

  C. Ecology is the scientific study of the interaction of organisms with each other and the environment.

  Which of these statement(s) is/are correct?
  A)
   A and B          done clear
  B)
                     B and C done clear
  C)
  A, B and C       done clear
  D)
                     None of these done clear
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• question_answer34)
  Energy is maximum in ............... trophic level and minimum in the ............... trophic level
  A)
  producer, consumer done clear
  B)
  consumer, decomposer done clear
  C)
  top, Bottom done clear
  D)
  bottom, Top done clear
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