NEET UG · Biology · Biodiversity and Conservation
Patterns and Estimates of Biodiversity: NEET previous year questions
6 questions in ten years of NEET, in 4 of 10 papers. Pattern: Most years. Here is how it is asked and which ideas come back.
- Asked in 10 years
- 6
- about 0.6 per paper
- Years asked
- 4/10
- last asked 2026
- Weighted estimate
- 0.6
- model; history: 0.6 a paper on average, typically 0–2
Key findings
- 01
Asked in 4 of 10 papers, 6 questions in all: #128 of 204 topics by ten-year total. It comes back every 3.0 years on average.
- 02
80% of its questions since 2018 tested an idea never asked before; none repeated an idea from the year before.
- 03
The most repeated idea is Species Richness of the Amazon, asked 2 times (2020, 2026), usually as “identify region with highest biodiversity”.
- 04
NEET has asked 0 of the 7 ideas in this topic; 0 have never been asked, directly or indirectly.
- 05
Mostly asked as one-line MCQ (67%); 17% easy, 17% hard, and up from 0.4 to 0.9 questions a paper since 2024.
Questions per year
- Up to 2023
- 0.4
- per paper
- Since 2024
- 0.9
- +0.5
- Usual gap
- 3.0 yrs
- between papers asking it
- Swing
- ±0.8
- questions, year to year
How it is asked
Difficulty, format and skill
Across all 6 questions on Patterns and Estimates of Biodiversity since 2017.
Difficulty
QUESTIONS- Easy1 · 17%
- Medium4 · 67%
- Hard1 · 17%
Format
SHARE- One-line MCQ · 4 Q67%
- Other · 1 Q17%
- Match the lists · 1 Q17%
Skill tested
SHARE- Recall · 5 Q83%
- Concept · 1 Q17%
Repeats
New idea, or one asked before?
Each column is a paper. Blue questions tested an idea NEET had not asked before; navy ones went back to an idea from an earlier paper. 2017 is the first paper, so everything in it counts as new.
- Idea asked for the first time
- Idea asked in an earlier paper
Coverage of the topic
NEET has asked 0 of the 7 ideas in this topic. 0 have never been asked yet.
- Asked directly0 · 0%
- Touched inside another question7 · 100%
- Never asked0 · 0%
Ideas come from Lumi’s syllabus map of NCERT. A never-asked idea is not a safe skip: most new questions come from exactly these.
Drill down
Idea, year, question
Every idea NEET tested in this topic, with its ten papers. Open one to read the questions.
- Repeated2 · 33%
- 2026 · Q144Arrange the following in descending order of number of species in the Amazonian rain forest. (a) Plants | (b) Birds (c) Fishes | (d)…
hardOne-line MCQ
- 2020 · Q34Which of the following regions of the globe exhibits highest species diversity ?
easyOne-line MCQNew idea
- 2026 · Q144
- 1 · 17%
- 1 · 17%
- 1 · 17%
- 1 · 17%
Squares are the ten papers, 2017 to 2026; darker means more questions. Share is of the level above.
Ideas
Every idea inside this topic
5 different ideas were tested; 1 came more than once.
- Species Richness of the Amazon2×
identify region with highest biodiversity
One-line MCQ · 6% next - Latitudinal Gradient of Diversity1×
count correct statements on species diversity
Other · 6% next - Scientists and Biodiversity Concepts1×
match list on ecologists and concepts
Match the lists · 6% next - Global Species Estimates1×
recall of biodiversity statistic
One-line MCQ · 4% next - Species-Area Relationship1×
identify scientist for a discovery
One-line MCQ · 4% next
Chance next is the historical rate at which an idea with this record came back in the following paper. It is low for every idea, which is why learning the topic beats memorising past questions. All repeated ideas
Every question
Patterns and Estimates of Biodiversity questions, year by year
The opening words of each question as it appeared in the official paper, with the idea it tested.
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)…
Idea: Species Richness of the Amazon
HardOne-line MCQ
NEET 20242 questions
- Q131Tropical regions show greatest level of species richness because A. Tropical latitudes have remained relatively undisturbed for millions…
Idea: Latitudinal Gradient of Diversity
New ideaMediumOther - Q142Match List I with List II List I | List II A. Robert May | I. Species-Area relationship B. Alexander von Humboldt | II. Long term…
Idea: Scientists and Biodiversity Concepts
New ideaMediumMatch the lists
NEET 20202 questions
- Q32According to Robert May, the global species diversity is about :
Idea: Global Species Estimates
New ideaMediumOne-line MCQ - Q34Which of the following regions of the globe exhibits highest species diversity ?
Idea: Species Richness of the Amazon
New ideaEasyOne-line MCQ
NEET 20171 question
- Q170Alexander Von Humbolt described for the first time :
Idea: Species-Area Relationship
MediumOne-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.