Loyola College M.Sc. Zoology April 2008 Phylogeny Of Invertebrata And Chordata Question Paper PDF Download

DE 18

 

LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

M.Sc. DEGREE EXAMINATION – ZOOLOGY

FIRST SEMESTER – APRIL 2008

ZO 1807 – PHYLOGENY OF INVERTEBRATA AND CHORDATA

 

 

 

Date : 28-04-08                  Dept. No.                                        Max. : 100 Marks

Time : 1:00 – 4:00

 

PART – A                                          Answer ALL                                                 (10 x 2 = 20 Marks)

  1. Give binomials of cat and camel
  2. Mention any four economically important reptiles.
  3. Write the dental formulae of rabbit and elephant
  4. Define Sericulture and Palaeontological question mark
  5. Write short notes on Cephalaspis
  6. Explain cephalization
  7. Write down any four important characteristics of the Phylum Phoronida
  8. Give four parasitic adaptations of Taenia and Mosquito
  9. Enumerate any four important characters of Hemichordates.
  10. Explain the following ductus caroticus and ductus cuiveri

PART –  B                              Answer any FOUR                                                 (4 x 10 = 40 marks)

  1. Write notes on the Larval forms of Echinoderms
  2. Define adaptive radiation and Give an account of the Adaptive radiation in Marsupials.
  3. What are Pathogens? Explain in detail the Pathogen Entamoeba.
  4. What are pearl oysters and give an account on pearl culture.
  5. Explain metamerism and add a note on Metamerism in various groups of animals.
  6. Write notes on the corals and coral reefs.

 

PART – C                               Answer any TWO                                       (2 x 20 = 40 marks)

  1. Write an essay on the origin, evolution and classification of Ostracoderms
  2. Compare and bring out the evolutionary significance of the respiratory systems of the major groups of invertebrates and chordates.
  3. Explain in detail the origin, ancestry and evolution of chordates with reference to Geological time scale.
  4. Explain in detail the Rotifers and bring out their systematic position.

 

 

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