NEET UG · Biology · Class 12
Biodiversity and Conservation: NEET previous year questions
22 questions in ten years of NEET, asked in 9 of 10 years. Here is what this chapter tests and how.
- Asked in 10 years
- 22
- 9 of 10 papers
- 10-year average
- 2.1
- a paper · 2.5 since 2024 +0.6
- Typical range
- 1–3
- questions a paper; fewest 0, most 5
- Weighted estimate
- 2.2
- model, recent papers count more · about 9 marks
- Typical range (fact)
- 10-year average (fact)
- Weighted estimate (model)
Typical range: questions per paper in the middle eight of the ten papers, leaving out the single highest and lowest year (about the 10th to 90th percentile), each paper scaled to 180 questions. The ten-year average and the range are historical fact. The weighted estimate is a model: each paper's share, with recent papers counting more (half-life three years), and dropped syllabus removed. It is a guide to effort, not a forecast.
What to do
How to spend time on Biodiversity and Conservation
Priority
Among the chapters that took NEET from half to 80% of its questions. How bands are set
- Past questions
- 22in 9 of 10 papers
- Study plan gives it
- 12 hover 12 months; 9 h over 6
Ideas asked most often
- Species Richness of the Amazon2×
- Components of the Evil Quartet2×
- Habitat Loss and Fragmentation2×
148 of the 170 ideas in Lumi’s map of this chapter have not been asked or touched in ten years. New questions often come from ideas like these, so learn the whole chapter, not just the list above.
Questions per year
Kind of question
SHARE OF 10 YEARS- Recall86%
- Match the lists9%
- Concept5%
Most common asks: definition recall (4); odd-one-out among conservation methods (3); identify most important cause of extinction (2).
Profile
This chapter in numbers
Where it ranks, how steady it is, and what it costs to study.
- Rank, all NEET chapters
- #33
- of 80 by weighted estimate
- Rank in Biology
- #20
- of 32 chapters
- Share of the paper
- 1.2%
- ten-year average
- Busiest year
- 2024
- 5 questions
- Year to year
- Some swing
- varies by about 1.2 questions
- Long-run direction
- -0.01
- questions per paper, per year
- Easy questions
- 77%
- 13% of ideas rated hard
- With a figure
- 0%
- graph, diagram or structure
- Botany / Zoology
- 21 / 1
- questions by section
- Study time
- 12 h
- 9 h on a 6-month plan
- Marks per study hour
- 0.73
- #4 of 80 chapters
- Foundation for others
- 3%
- of its ideas are used in other chapters
Difficulty, year by year
Each question rated easy, medium or hard against NCERT.
- 20173
- 20181
- 20193
- 20202
- 2021
- 20223
- 20232
- 20245
- 20252
- 20261
- Easy
- Medium
- Hard
What it asks you to do
SHARE OF QUESTIONS- Recall96%
- Concept5%
Coverage
How much of the chapter NEET has used
We split the chapter into 170 ideas. In ten years NEET built a question around 14 of them. Most of the chapter has never been asked, which is why learning it whole beats memorising past questions.
- Asked as the main idea
- 14
- Touched on in a question
- 8
- Never asked
- 148
Topics
What repeats, topic by topic
Questions per topic in each year's paper. Topics that come every year are worth learning first.
- Conservation Strategies · Every year112122121
- Patterns and Estimates of Biodiversity · Most years61221
- Biodiversity Loss · Every year511111
| Topic | 2017 | ’18 | 2019 | ’20 | 2021 | ’22 | 2023 | ’24 | 2025 | ’26 | Total |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Conservation StrategiesEvery year | 2 | 1 | 2 | · | · | 2 | 1 | 2 | 1 | · | 11 |
| Patterns and Estimates of BiodiversityMost years | 1 | · | · | 2 | · | · | · | 2 | · | 1 | 6 |
| Biodiversity LossEvery year | · | · | 1 | · | · | 1 | 1 | 1 | 1 | · | 5 |
Drill down
Topic, idea, question
Open a topic to see every idea NEET tested inside it, then open an idea to read the questions. Each row shows its ten papers.
Ideas
The exact ideas NEET has asked
Inside the topics, 19 different ideas were tested. These came more than once, or are new since 2024.
- Species Richness of the Amazon2×
identify region with highest biodiversity
- Components of the Evil Quartet2×
identify outcome of listed causes
- Habitat Loss and Fragmentation2×
identify most important cause of extinction
- The Evil Quartet ConceptNew1×
match list on biodiversity loss and conservation
- Zoological Parks vs SanctuariesNew1×
identify example of a type
- Scientists and Biodiversity ConceptsNew1×
match list on ecologists and concepts
- Latitudinal Gradient of DiversityNew1×
count correct statements on species diversity
- Ex-situ Conservation DefinitionNew1×
definition recall
- IUCN Red List CategoriesNew1×
identify organisation for a conservation task
Every question
Biodiversity and Conservation questions, year by year
The opening words of each question as it appeared in the official paper.
NEET 20261 question
- Q144Arrange the following in descending order of number of species in the Amazonian rain forest. (a) Plants | (b) Birds (c) Fishes | (d)…One-line MCQ
NEET 20252 questions
- Q99Which one of the following is an example of ex-situ conservation?One-line MCQ
- Q164Match List I with List II: List I | List II A. The Evil Quartet | I. Cryopreservation B. Ex situ conservation | II. Alien species invasion…Match the lists
NEET 20245 questions
- Q103The type of conservation in which the threatened species are taken out from their natural habitat and placed in special setting where they…One-line MCQ
- Q114List of endangered species was released by-One-line MCQ
- Q131Tropical regions show greatest level of species richness because A. Tropical latitudes have remained relatively undisturbed for millions…Other
- Q134These are regarded as major causes of biodiversity loss: A. Over exploitation B. Co-extinction C. Mutation D. Habitat loss and…Other
- Q142Match List I with List II List I | List II A. Robert May | I. Species-Area relationship B. Alexander von Humboldt | II. Long term…Match the lists
NEET 20232 questions
- Q108Among 'The Evil Quartet', which one is considered the most important cause driving extinction of species?One-line MCQ
- Q126The historic Convention on Biological Diversity, 'The Earth Summit' was held in Rio de Janeiro in the year :One-line MCQ
NEET 20223 questions
- Q101Which of the following is not a method of ex situ conservation ?One-line MCQ
- Q119Habitat loss and fragmentation, over exploitation, alien species invasion and co-extinction are causes for :One-line MCQ
- Q183In-situ conservation refers to :One-line MCQ
NEET 20202 questions
- Q32According to Robert May, the global species diversity is about :One-line MCQ
- Q34Which of the following regions of the globe exhibits highest species diversity ?One-line MCQ
NEET 20193 questions
- Q91The Earth Summit held in Rio de Janeiro in 1992 was called :One-line MCQ
- Q98Which of the following is the most important cause for animals and plants being driven to extinction ?One-line MCQ
- Q106Which one of the following is not a method of in situ conservation of biodiversity ?One-line MCQ
NEET 20181 question
- Q154All of the following are included in 'Ex-situ conservation' exceptOne-line MCQ
NEET 20173 questions
- Q106The region of Biosphere Reserve which is legally protected and where no human activity is allowed is known as :One-line MCQ
- Q121Which one of the following is related to Ex-situ conservation of threatened animals and plants ?One-line MCQ
- Q170Alexander Von Humbolt described for the first time :One-line MCQ
Questions from the official NEET UG papers published by NTA (CBSE before 2019). Topic and idea tags, counts and notes are Lumi’s.