BrainIt

Biology

Ecosystem

Energy is the thread here: ecosystem structure, productivity, decomposition, energy flow, and ecological pyramids. NEET pairs recall with small numericals, like computing net productivity or applying the 10 percent energy transfer idea.

Exam rules change between cycles. Confirm dates, syllabus and pattern against NTA's official site. We are not NTA.

Weightage: what the paper actually did

Ecosystem carried 3 questions in the NEET 2026 paper. One paper is a data point, not a destiny: NTA moves weight between chapters every cycle, which is why the weightage tables deserve care. The stable facts are the paper's shape: 180 questions, 720 marks, +4 right, −1 wrong.

Sample PYQs from this chapter

Real questions NTA asked from Ecosystem, with the answer and the working. Try before you peek.

Question 1 · NEET 2026

Ecological pyramids represent the relationship between the organisms at different trophic levels and they are generally inverted for:
  1. A.Pyramid of number in grassland
  2. B.Pyramid of energy in pond ecosystem
  3. C.Pyramid of biomass in grassland
  4. D.Pyramid of biomass in sea
Answer and explanation

Answer: D

Pyramids of number and biomass in grassland are upright, and the pyramid of energy is always upright. Inversion typically occurs for the pyramid of biomass in a sea/aquatic ecosystem, because the standing biomass of the phytoplankton (producers) at any moment is smaller than that of the zooplankton and consumers they support. Hence the pyramid of biomass in sea is inverted.

How to practise Ecosystem

Chapter by chapter, against real past-paper questions, on a screen: NEET is computer based from 2027. Read the chapter once, then attempt its PYQs until your accuracy stops climbing, and let the wrong answers tell you which lines to reread. If the chapter keeps refusing to stick, that has its own guide. There is also a free 12-question mock on the exam screen.

Nearby Biology chapters

Questions

How many questions did Ecosystem have in NEET 2026?

Ecosystem carried 3 questions in the NEET 2026 paper. Weightage shifts between cycles, so treat it as a probability, not a promise.

Where can I practise Ecosystem PYQs for NEET?

In the BrainIt app, free until the 2027 exam: its bank holds 50,000 past NTA questions tagged to all 83 chapters, including this one, with accuracy tracked per chapter. A sample question from this chapter is on this page.

Is Ecosystem important for NEET 2027?

It is part of the Biology syllabus the paper draws from, and NEET 2027 is computer based, so practise it on a screen. Your own accuracy in the chapter matters more than any weightage table: a heavy chapter you already score well on needs less time than a light one you keep missing.

Something here wrong or out of date? Email irshad@moonlightart.space and a person will read it.