Zoology IFS Paper 1 UPSC 2017 with Solutions

Zoology Optional UPSC Forest Service Paper 1 2017

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SECTION-A

1. Write a brief account of the following:                            

Zoology 1(a) Phenomenon of polymorphism with reference to Coelenterates (IFS 2017, 8 Marks)

Zoology 1(b) Functional morphology of pancreas in mammals (IFS 2017, 8 Marks)

Zoology 1(c) Catadromous migration among fishes (IFS 2017, 8 Marks)

Zoology 1(d) Structure of scolex in Taenia solium. (IFS 2017, 8 Marks)

Zoology 1(e) Types of feathers in birds (IFS 2017, 8 Marks)

Zoology 2(a) What is Retrogressive Metamorphosis? Discuss briefly with reference to life history of Ascidians. (IFS 2017, 10 Marks)

Zoology 2(b) Compare the functional anatomy of the brain in Calotes, Columba and Oryctolagus. (IFS 2017, 15 Marks)

Zoology 2(c) Write an essay on dentition in mammals. (IFS 2017, 15 Marks)

Zoology 3(a) What is Torsion? Describe the significance of torsion and detorsion in Gastropods. (IFS 2017, 10 Marks)

Zoology 3(b) Write an essay on modes of reproduction in Protozoa. (IFS 2017, 15 Marks)

Zoology 3(c) Describe the larval forms in Echinodermata. Add a note on their evolutionary significance. (IFS 2017, 15 Marks)

Zoology 4(a) Describe the biting and chewing, siphoning and piercing and sucking mouth parts in insects with suitable examples. (IFS 2017, 15 Marks)

Zoology 4(b) Describe in detail, the life cycle and pathogenicity of Leishmania donovani. (IFS 2017, 15 Marks)

Zoology 4(c) Write an account of the canal system in sponges. (IFS 2017, 10 Marks)

SECTION B

5. Differentiate between the following:                              

Zoology 5(a) Bioremediation and Biomagnification. (IFS 2017, 8 Marks)

Zoology 5(b) Correlation and Regression. (IFS 2017, 8 Marks)

Zoology 5(c) Biological Clock and Biological Rhythm. (IFS 2017, 8 Marks)

Zoology 5(d) SEM and TEM. (IFS 2017, 8 Marks)

Zoology 5(e) Infectious and Communicable Diseases (IFS 2017, 8 Marks)

Zoology 6(a) “A population is a self-regulating system.” Justify. (IFS 2017, 15 Marks)

Zoology 6(b) What is Learning Behaviour? Explain the terms Imprinting, Conditional behaviour and Habituation with suitable examples. (IFS 2017, 15 Marks)

Zoology 6(c) Write an essay on Pearl culture in India. Is it an investment avenue? Comment. (IFS 2017, 10 Marks)

Zoology 7(a) What is Pollution? Describe water pollution, its sources and effect on human health. (IFS 2017, 15 Marks)

Zoology 7(b) What is the causative agent of Tuberculosis? Describe the characteristics, pathogenicity, and public health significance. (IFS 2017, 15 Marks)

Zoology 7(c) What are Natural Resources? Mention any two and discuss the conservation strategies undertaken. (IFS 2017, 10 Marks)

Zoology 8(a) What are Mean, Median and Mode? Explain the relationship between these three measures of central tendency. (IFS 2017, 15 Marks)

Zoology 8(b) What is Scintillation Counting? Explain the principle and its use in biology. (IFS 2017, 15 Marks)

Zoology 8(c) What are the possible consequences of ozone layer depletion? (IFS 2017, 10 Marks)