NOU MSc Zoology Part-1 Paper-3 Model Question 2026

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📅 18/06/2026

NOU MSc Zoology Part-1 Paper-1 2 3 4 5 6 7 8 Model Question 2026

M.Sc. Zoology Part-I – PAPER-III

(Ecology, Environmental Biology & Toxicology)

Previous Year Analysis (2012–2025)

Topic / Question Times Asked Years Asked
Niche Concept & Ecological Significance 5 2013, 2015, 2020, 2022, 2024
Ecological Model & Fundamentals 5 2013, 2015, 2017, 2020, 2022
Role of Predation in Nature 5 2014, 2020, 2022, 2024 (+ short note repeatedly)
Mutualism & Evolution of Mutualism 5 2015, 2020, 2023, 2024 (+ short notes)
Environmental Stress on Animals 4 2013, 2020, 2023, 2024
Adaptation with Environmental Change 4 2020, 2022, 2024, 2025
Life Tables & Survivorship Curves 4 2013, 2015, 2022, 2023
Competition in Nature 3 2014, 2017, 2023
Evolution of Life-History Traits 3 2013, 2022, 2024
Environmental Acts of India 3 2013, 2015, 2023
Light & Pressure on Survival of Organisms 3 2013, 2015, 2022
Impact of Temperature on Organisms 2 2023, 2024
Carbon Cycle & Human Interference 2 2020, 2024
Acid Rain 4 2020, 2022, 2024, Short Notes
Oxygen Toxicity 4 2013, 2020, 2023, 2024
Intertidal Zone 3 2020, 2022, 2024

Most Repeated Short Notes

Short Note Topic Times Asked
Mutualism 5
Predation 4
Competition 4
Intertidal Zone 3
Acid Rain 4
Oxygen Toxicity 4
Acclimatization 3
Tolerance 2
Environmental Ethics 2
Estuaries 2
Deciduous Forest 2
Homeostasis 2
Habitat Niche 2
Animal-Animal Interaction 2

Most Important Questions for 2026

Priority Topic
★★★★★ Niche Concept
★★★★★ Ecological Model
★★★★★ Mutualism
★★★★★ Predation
★★★★★ Life Tables & Survivorship Curve
★★★★☆ Environmental Stress
★★★★☆ Adaptation to Environmental Change
★★★★☆ Competition
★★★★☆ Environmental Acts of India
★★★★☆ Light & Pressure Effects
★★★☆☆ Carbon Cycle
★★★☆☆ Nitrogen Cycle
★★★☆☆ Temperature Effects

High Probability Short Notes (2026)

  1. Mutualism
  2. Predation
  3. Competition
  4. Acid Rain
  5. Oxygen Toxicity
  6. Intertidal Zone
  7. Acclimatization
  8. Environmental Ethics
  9. Estuaries
  10. Homeostasis

Top 5 Repeated Topics (Must Prepare)

Rank Topic Frequency
1 Niche Concept 5 Times
2 Ecological Model 5 Times
3 Predation 5 Times
4 Mutualism 5 Times
5 Environmental Stress / Adaptation 4 Times

2026 Sure-Shot Preparation List

अगर समय कम है तो ये 10 टॉपिक जरूर पढ़ें:

  1. Niche Concept
  2. Ecological Model
  3. Mutualism
  4. Predation
  5. Life Tables
  6. Environmental Stress
  7. Adaptation
  8. Competition
  9. Acid Rain
  10. Oxygen Toxicity

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