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UPSC Indian Forest Service (IFoS) Main Previous Year Question Paper 2024 Zoology-I-Free PDF Download
UPSC Indian Forest Service (IFoS) Main Previous Year Question Paper 2024 Zoology-I-Free PDF Download
ZOOLOGY Paper - I
Time Allowed : Three Hours
Maximum Marks : 200
## Question Paper Specific Instructions
Please read each of the following instructions carefully before attempting questions :
There are EIGHT questions in all, out of which FIVE are to be attempted.
Questions no. 1 and 5 are compulsory. Out of the remaining SIX questions, THREE are to be attempted selecting at least ONE question from each of the two Sections A and B.
Attempts of questions shall be counted in sequential order. Unless struck off, attempt of a question shall be counted even if attempted partly. Any page or portion of the page left blank in the Question-cum-Answer Booklet must be clearly struck off.
All questions carry equal marks. The number of marks carried by a question/part is indicated against it.
Neat sketches may be drawn, wherever required.
Answers must be written in ENGLISH only.
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UPSC Indian Forest Service (IFoS) Main Previous Year Question Paper 2024 Zoology-I
## SECTION A
Q1. Write a brief account on each of the following : 8x5=40
(a) Role of fins in fish locomotion 8
(b) Structure and mechanism of action of cnidoblasts 8
(c) General features of egg-laying mammals and pouched mammals 8
(d) Affinities of Balanoglossus 8
(e) Structure of internal ear in mammals 8
(b) Draw a labelled transverse section of pancreas and comment on the role of various pancreatic hormones. 15
(c) Describe the structure and role of book-lungs in scorpions. 10
Q3. (a) With the help of a labelled diagram, describe the life history of Leishmania. 15
(b) Discuss the concept of metamerism in annelids with relevant examples. 15
(c) Explain the functions of mammalian integument. 10
Q4. (a) Describe the structural peculiarities of larval forms in Echinoderms. 15
(b) Give an account of the various skeletal structures in sponges. 15
(c) "Birds are called glorified reptiles." Comment. 10
UPSC Indian Forest Service (IFoS) MAIN Previous Year Question Paper 2024 – statistics-II
5. Write a brief account on each of the following : 8x5=40
(a) Role of mosquitoes as vectors of human diseases 8
(b) Pearl culture in freshwater 8
(c) Principle and applications of spectrophotometry 8
(d) Acid rain and its impact on biosphere 8
(e) Habituation behaviour in animals 8
Q6. (a) Give an account of gastro-intestinal nematodes of cattle and briefly discuss their pathogenicity. 15
(b) Explain various measures implemented by the government to manage vehicular pollution in India. 15
(c) Discuss different sign stimuli used by animals and comment on their adaptive significance. 10
Q7. (a) Describe the principle, working and applications of Scanning Electron Microscopy. 15
(b) What is meant by communicable diseases? Describe the pathogenicity, clinical manifestation and prevention of cholera. 15
(c) What is meant by global warming? How is it impacting the environment in the context of greenhouse gases? 10
Q8. (a) List various population characteristics. Explain J-shaped and S-shaped growth forms with suitable examples. 15
(b) Giving suitable examples, explain the concept of homing in animals. 15
(c) Explain null hypothesis and its application in Biology. 10
ZOOLOGY PAPER 1 Free PDF Download link
UPSC Indian Forest Service (IFoS) Main Previous Year Question Paper 2024 Statistics-II
UPSC Indian Forest Service (IFoS) Main Previous Year Question Paper 2024 Statistics-I
UPSC Indian Forest Service (IFoS) Main Previous Year Question Paper 2024 PHYSICS-II
