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UPSC IFOS Zoology Paper I Syllabus

Indian Forest Service Examination

7
Topics
40
Sub-topics
8
Questions

Zoology Paper I is one of 32 sections in the UPSC IFOS syllabus. It has 7 topics and 40 sub-topics, tested in Main Examination, with about 8 questions (200 marks). Optional subject, Paper I (200 marks, 3 hours, conventional essay type, answered in English). The paper has 8 questions in Parts A and B; candidates attempt 5, including one compulsory question from each part. Candidates choose any two of the 14 optional subjects..

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UPSC IFOS Zoology Paper I: topic-wise syllabus

  1. 1

    Non-chordata

    Section A

    • Classification and relationships of phyla
    • Protozoa
    • Porifera
    • Coelenterata and coral reefs
    • Platyhelminthes and Nemathelminthes
    • Annelida
    • Arthropoda and insect metamorphosis
    • Mollusca
    • Echinodermata
  2. 2

    Chordata and Comparative Anatomy

    Section A

    • Protochordata and origin of chordates
    • Pisces
    • Amphibia
    • Reptilia
    • Aves
    • Mammalia and endocrine glands
    • Comparative functional anatomy of vertebrate systems
  3. 3

    Ecology

    Section B

    • Biosphere, biogeochemical cycles and greenhouse effect
    • Ecological succession, biomes and ecotones
    • Population dynamics
    • Conservation of natural resources
    • Wildlife conservation and Project Tiger
    • Biodegradation and pollution
  4. 4

    Ethology

    Section B

    • Behaviour, learning and instinct
    • Hormones, pheromones and social behaviour
    • Courtship
    • Orientation, navigation and homing
    • Biological rhythms and clocks
    • Methods of studying animal behaviour
  5. 5

    Economic Zoology

    Section B

    • Apiculture, sericulture and lac culture
    • Carp, pearl and prawn culture
    • Major human infectious diseases and vectors
    • Cattle and livestock diseases
    • Pests of sugarcane, oilseed and rice
  6. 6

    Biostatistics

    Section B

    • Design of experiments and null hypothesis
    • Correlation and regression
    • Measures of central tendency
    • Chi-square, t-test and F-test
  7. 7

    Instrumental Methods

    Section B

    • Spectrophotometry and flame photometry
    • Geiger-Muller and scintillation counting
    • Electron microscopy: TEM and SEM

Frequently asked questions

What topics are in the UPSC IFOS Zoology Paper I syllabus?

Zoology Paper I for UPSC IFOS has 7 topics: Non-chordata, Chordata and Comparative Anatomy, Ecology, Ethology, Economic Zoology, Biostatistics and Instrumental Methods, with 40 sub-topics in all.

How many questions come from Zoology Paper I in UPSC IFOS?

About 8 questions (200 marks) in Main Examination. Always check the latest notification, as numbers can change.

How do I practise UPSC IFOS Zoology Paper I on Topicly?

Pick a topic above and study it your way — step-by-step chat, a quiz, a formula sheet or a voice call with Sia. Topicly tracks each sub-topic so you know what's left. It's free to start.

A study guide, not an official notice. Always confirm with the conducting body's latest notification. See the full exam page for any recorded source, check date and coverage limits.