WBCS(Main)-2007 Zoology Paper-I Question Paper

                                                WEST   BENGAL   CIVIL  SERVICE 

                                                           EXAMINATION - 2007

                                                                Zoology Paper-I

 

Time Allowed-3 Hours                                                                                        Full Marks-100 

 

                                                                      Group - A 

                                                        (Answer any three questions.)

 

1.  Mention the characters of Phylum Nemathelminthes।  Describe the Life-history of Wuchereria bancrofti.    5+15

 

2.  Discuss the affinities of peripatus with Annelida and Arthropoda. Comment on its systematic position.    8+8+4

 

3.  Discuss the statement - “Birds are glorified reptiles”।      20

 

4.  Make a comparison in tabular from between cartilagenous and Bony fishes. Write on the functions of swim-bladder.      14+6

 

5.  Write short notes on any four of the following :- 

     (a)  Appendage

     (b)  Components of circulatory system 

     (c)  Corals 

     (d)  Importance of Neopelina

     (e)  Retrogressive metamorphosis

     (f)  External morphology of Monotremata.     5x4

 

                                                                       Group—B

                                                            Answer any two questions.

 

6.  What is culture fishery ?   Outline the process of pisciculture under inland fishery.  Discuss the methods of induced breeding.       2+4+14

 

7.  Define Ecosystem.   Discuss the nature of energy flow in ecosystem.   What is solar flux ?      4+12+4

 

8.  Write on the two major groups of animal behaviour.  Write on the methods of studying animal behaviour.     10+10

 

9.  Write notes on any four of the following :-

    (a)  Secondary pollutants

    (b)  Ganga Action Plan  

    (c)  Variables in Biology

    (d)  Global warming

    (e)  Attributes of organised societies

    (f)  Algal bloom.     5x4  

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