Question Pool Evolution

Evolution - SAMAGRA Question Pool & Answers | Class 12

Kerala Syllabus SAMAGRA SCERT SAMAGRA Question Pool for Class 12 Biology Evolution

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Qn 1.

state whether the following statements are true or false and if false correct them

a) Mesozoic era is called the Age of reptiles.

b)Palaeontology is the study of fossils

c) Darwin finches are classical examples of convergent evolution.

d)Tyrannosaurus rek is the biggest land reptile .

e)Paleozoic era is called the Age of mammals.

f)Appearance of grey coloured moth in England after 1850 is an example of anthopogenic evolution.



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Qn 2.

Find the odd one giving reasons

a)CO2 ,NH3 , H2O, O2 and CH4

b) La mark, De vries , Mendel and A.I .Oparin

c)Spontaneous generation,Special creation,Biogenisis, Chemical evolution



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Qn 3.

Identify the theory which attempt to explain the origin of earth?



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Qn 4.

Study the relation between first word pair and fill in the blanks

a. Age of universe:  20 billion years ::: Age of Earth : ....  billion years

b. Chemical evolution theory : JBS Haldane and A.I.Oparin :: Experimental proof of Chemical evolution theory : ..................................

c)Homologous organs : Divergent evolution :: Analogous organs : .............

d)Charles Darwin : Natural selection :: La mark : .................................

e)Huge fearsome dinosaur : Tyrannosaurus rex :: Fish like dinosaur .............



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Qn 5.

List the major connotations of special creation theory.



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Qn 6.

Match the following

A

B

Shrew

Fish like reptile

Coelacanth

First mammal

Tyrannosaurus rek

Lobed fishes

Ichthysaurus

Biggest land reptile

 

  • Answer)
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    Qn 7.

    Study the relation between first word pair and fill in the blanks

    a) Natural selection- Charles Darwin :: Mutation theory : ......................

    b)Homologus organs -Divergent evolution : : Analogous organs : ...............



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    Qn 8.

    Categorise the following into two and give proper headings a) Heart of man and cheetah b) Wings of butter fly and bat c)Fore limbs of whales and bats. d)Eye of octopus and Mammals

     

    • Answer)

    Homologous

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    Qn 9.

    p2+2pq+q2=1 is an important equation showing an Evolutionary principle.

    a)Name the evolutionary principle

    b)Name the factors affecting the principle



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    Qn 10.

    Prepare a flow chart on human evolution using the hints below.

    a) Homo erectus b) Homo sapiens c) Ramapithecus d )Australopithecus e) Neanderthal man f) Homo habilis g)Homo sapiens sapiens)



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    Qn 11.

    Write two views by La marks on the Long neck of Giraffe.



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    Qn 12.

    What are the two key concepts of Darwinian theory of evolution?



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    Qn 13.

    '' Evolution also occurs through anthropogenic action” do you agree with this statement justify your answer?



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    Qn 14.

    ''Lichens can be used as indicators of industrial pollution'” do you agree with this statement justify your answer?



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    Qn 15.

    Illustrate how molecular homology indicates common ancestry.



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    Qn 16.

    Categorise the following into Analogous and Homologous structures. a) Vertebrate Heart or brain b) Eye of octopus and Mammal c) Tendrils of Bougainvillea and cucurbita d) Flippers of penguins and dolphins e) Sweet potato and potato f )Fore limbs of whales and bats.