Main Exam 2010 Paper ZOOLOGY

ZOOLOGY
Paper I
Time Allowed: Three hours Maximum Marks 300
INSTRUCTIONS
Each question is printed both in Hindi and
in English.
Answers must be writ:ten in the medium
specified in the Admission Certificate
issued to you, which must be stated clearly
on the cover of the answ.er??book in the
space provided for the purpose. No marks
will be given for the answers written. in a
medium other than specified in the
Admission Certificate.
Candidates should attempt Questions
No. and 5 which are cvmpulsory, and
any three of the remaining questions
selecting at least one question from each
Section.
The number marks carried by each
question is indicated at the end of the
question.
Illustrate your answers with suitable
diagrams, wherever necessary.

SECTION A
1. Write concise accounts of any three of the following in about 200 words each 20*3=60
(a)What are coral reefs Enlist th??ir geographic.al distribution, types and threats being faced by them.
Draw well labelled diagrams only of male urinogenital systern of Labeo and frog.
(c)Enlist and draw the diagrams of various 1arval forms of Echinoderms and describe their evolutionary significance.
(d)Draw a ·weu abelled diagram of the int??rna1 ear or rabbit. Comment upon the functions of each part.

2. Answer any two of the fofiQwing 30x2=60
Enumerate various stages of sexual reproduction in Sycon. Provide diagrammatic representation i suppoitt of your answer.
What are the various hosts in which Wuchereria bancrofti completes its life cycle? Describe various stages of its life cycle along with the diagram.
Explain the structure and f'U;rctions of respiratory

3. What is retrogressive metamorphosis? Provide an illustrated account of reproduction in Herd'mania. 30
Draw a well labelled diagram of respiratory ,system of Scoliodon and explain the mechanism Of respiration. 30

4. Give an account on dentit'on in mammals. 30
Enlist any five hara derivatives of vertebrate integumentary system., Give an account on various types of horns and antlers in mammals giving exarnples and diagrams. 30

SECTION Q

5. Write in brief, accounts of any three of the following in about 200 words each 20*3=60
Mention the various steps of sulphur biogeochemical cycle and draw a well la belled diagram. dicuss its significance
(b)What is meant by 'sign-stimulus'? Mention various types of sign-stimuli and discuss with examples.
(c)What is Lac culture What are the uses of lac Explain the methodology employed in lac culture. Discuss its present scenario in India.
What is EM Mention different types of EM. Describe the .structure and function of TEM. Mention its applications in biology.

6. Define sustainable development. Discuss the principles of sustainable development in the conservation natural resources. 20
Give a brief account of socia: organisations and determination of 'castes in termites: 20
(c)Write the clinical manifestations, mode of infection, diagnosis and treatment for tuberculosis. 20

7. What is student test Explain the a plication with example, 30
Enlist five man1malian wildlife endangered species of India. Discuss the present scenario of conservation methods employect for Gir lion. 30
What is imprinting Discuss salient features and significance of this phenomenon in animals. 30
(b)Comment upon sexual conflicts" in animals. 30