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lndran Forest
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Serial No. 1395]
ZOOLOGY·
Paper-1
(nme Allowed: Three l/ourJ J
I.
INSTRUCTIONS
Candidates should attempt questions 1 and 5
which are compulsory, and any THREE of the .
remaining questions, selecting at least ONE · ·
question from each Section.
The number of ,n;.rks carried by each question
is indicated at the end of the question.
Answers must be written in ENGLISH.
Suitable diagrams may be drawn, wherever
required.
SECTION-A
Write briefly on any FOUR of the following:-
(a)Protostomes and Deuterostomes.
(b)Metagenesis.
(c)Endo style in lower chordates.
(d)Scales in fish.
(e)Molar teeth in mammals.

2.(a)Describe various types of sexual reproduction in
Protozoa.Trace the evolution of sex in the phylum. 20
(b)What are coral reefs and how are they formed
Discuss critically the reasons for their destruction. 20

3.(a)Give an account of the parasitism in crustaceans citing
suitable examples. 20
(b)Describe different types of locomotion in molluscs
giving suitable examples. 20

4.(a)Write an account of different types of respiration in
fish. 20
(b)Describe with illustrations the salient features of heart
in reptiles, birds and mammals. 20
SECTION-8
5.Write notes on any FOUR of the following:
(a)Levels of organisation in biosphere.
(b)Imprinting.
(c)Sitophilus oryzae arid its control.
(d)Ecotones.
(e)Correlation.

6.(a)What are populations? Write various characteristics
of population and discuss briefly population
stabilization. 20
(b)Give an elaborate account of environmental
biodegradation. Suggest measures for its prevention. 20

7.(a)What is meant by social behaviour? Write an account
of social behaviour in primates. 20
(b)Give an elaborate account of prawn culture in India 20

8.(a)Explain the role of data analysis in experimental design
in biology.Indicate the significance of Students' test. 20
(b)Give an account of principle, working and application
of flame photometry. 20