How many questions come from Ecosystem in NEET?

Ecosystem was examined 42 times across the 13 NEET papers from 2013 to 2025 — about 3.2 questions (13 marks) per paper.

Is Ecosystem important for NEET 2027?

Yes — at roughly 3.2 questions a paper it is one of the higher-yield Biology chapters, and the NEET 2027 syllabus (NMC/UGMEB, December 2025) retains it.

How can I practice Ecosystem for NEET for free?

nextAIR holds 58 tagged questions on Ecosystem across 10 concepts. Adaptive practice and a timed chapter test both start from this page, free, with no signup.

Practice & Test Ecosystem

Class 12 Biology · Chapter 12. Practice 58 free NEET 2027 questions on Ecosystem (Class 12 Biology), across 10 concepts. Asked ~3.2× per paper since 2013. Start instantly — no signup.

nextAIR's analysis of 4,858 tagged NEET questions (2013–2026) finds Ecosystem draws about 2.38 questions per paper in the recent sittings (2023–2026), against 2.35 per paper historically — trend stable.

Practice questions

Concepts tagged

Asked 2013–2025

3.2×

Per paper

Part of the Ecology And Environment unit in NEET Biology.

How much does Ecosystem matter?

Across the 13 NEET papers from 2013 to 2025, Ecosystem has been examined 42 times — an average of 3.2 questions per paper. At 4 marks each, that is roughly 13 marks a year riding on this one chapter. Where it sits against every other chapter, weighted to the eight most recent papers with 2026 included, is in the NEET 2027 chapter-wise weightage.

Most repeated in Ecosystem

Topics by share of the 8 most recent NEET sittings in which they appeared, from nextAIR's 4,858-question PYQ pack (2013–2026).

Productivityasked 12× · 0.75 per paper recently · trend up62.5%repeat
Energy Flowasked 14× · 0.62 per paper recently · trend up50%repeat
Decompositionasked 9× · 0.38 per paper recently · trend stable37.5%repeat
Ecological Pyramidsasked 7× · 0.25 per paper recently · trend stable25%repeat
Ecological Successionasked 8× · 0.12 per paper recently · trend down12.5%repeat
Nutrient Cyclingasked 7× · 0.12 per paper recently · trend down12.5%repeat

All most-repeated NEET topics

What gets asked: 10 concepts

Every question in the bank is tagged to one of these, so practice can target the exact idea you keep missing.

DecompositionDecomposition in an EcosystemEcological PyramidsEcosystem -Structure and FunctionEnergy FlowEnergy Flow in an EcosystemNet Primary ProductivityPrimary ProductivityProductivity in EcosystemProductivity of an Ecosystem

Sample questions

Question 1

Net primary productivity (NPP) is related to gross primary productivity (GPP) as:

Question 2

The step of decomposition in which detritivores break down detritus into smaller particles is called:

Question 3

Arrange the terms; respiration losses, net pri- mary productivity and gross primary produc- tivity starting with the one having the high- est value to the one with lowest value for any ecosystem and choose the correct option.

Start practicing Ecosystem now

Practice adapts as you go — get one wrong and the next question targets the same concept instead of moving on. Or sit a timed test to see where you actually stand.

Practice Ecosystem Take a chapter test

Free · starts instantly · no signup

Frequently asked

How many questions come from Ecosystem in NEET?: Ecosystem was examined 42 times across the 13 NEET papers from 2013 to 2025 — about 3.2 questions (13 marks) per paper.
Is Ecosystem important for NEET 2027?: Yes — at roughly 3.2 questions a paper it is one of the higher-yield Biology chapters, and the NEET 2027 syllabus (NMC/UGMEB, December 2025) retains it.
How can I practice Ecosystem for NEET for free?: nextAIR holds 58 tagged questions on Ecosystem across 10 concepts. Adaptive practice and a timed chapter test both start from this page, free, with no signup.