Loyola College M.Sc. Zoology April 2011 Phylogeny Of Invertebrata And Chordata Question Paper PDF Download

LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

M.Sc. DEGREE EXAMINATION – ZOOLOGY

FIRST SEMESTER – APRIL 2011

ZO 1813 – PHYLOGENY OF INVERTEBRATA AND CHORDATA

 

 

Date : 20-04-2011             Dept. No.                                        Max. : 100 Marks

Time : 9:00 – 12:00

                                                       

                                                                    PART-A

(Answer All the questions)                                                                             (10×2 = 20 Marks)

1.Write notes on

(a) Ganoid Scales  (b) Down Feathers.

2.Write the Dental Formulae of the following:

(a) Man  (b) Dog  (c) Cat  (d) Tiger.

3.Give any four Economic Importance of Invertebrates.

4.Explain the Pathogenecity of the following:

(a) Taenia solium  (b)Ascaris lumbricoides

5.Give the Zoological names of the following:

(a) Garden Lizard  (b) Rat  (c) Shark  (d) Lion

6.Define the following:

(a) Morphallaxis  (b) Epimorphosis

7.Distinguish Adaptation from Adaptive Radiation.

8.Write short notes on:

(a) Air sacs  (b) Flame cells.

9.Define:

(a) Nephridia  (b) Sericulture.

10.Mention any four Affinities of Cephalochordates.

 

PART-B

(Answer any Four questions)                                                                        (4×10 = 40 Marks)

11.Write a paragraph on the Larval Forms of Echinoderms.

12.Give an account of the Origin , Ancestry and Evolution of Chordates with reference to

Geological Time Scale.

13.Explain in detail the Minorphyla-Rotifera.

14.Compare and bring out the Phylogenetic significance of heart of Chordates.

 

15.Briefly explain the Adaptive Radiation of Birds.

16.Discuss in detail the Life Cycle of Plasmodium.

 

PART-C

(Answer any Two questions)                                                                     (2×20 = 40 Marks)

17.Compare and contrast the Respiratory System of  Invertebrates and elaborate its    Phylogenetic Significance.

 

18.What are Ostracoderms? Classify and explain the Origin and Evolution of Ostracoderms.

 

19.Give an account of Apiculture.

 

20.Describe the following:

(a)Migration of birds  (b)Affinities of Urochordates  (c)Adaptive Radiation of Mammals.

 

 

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