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Botany - Ecosystem

Practise 288 NEET NTA questions on Ecosystem. Each question shows a quick preview so you can jump straight to the topic you want to revise.

Ecosystem has been asked in 0 of the 38 years of NEET NTA papers analysed (1988–2025), with 288 questions in all. 100% of them were easy, 0% moderate and 0% tough. Most of its questions came from 2025, with 0 questions that year. In the last three years (2023–2025) it had 0 questions across 6 papers, about 0 per paper.

All of the chapter's questions come from a single topic, Uncategorized.

  1. 1During succession, in the successive seral stages, there is a/an:
  2. 2In an aquatic ecosystem, ______________ is the major conduit for energy flow.
  3. 3Read the following statements. (i) Removal of tigers from an area will result in increased growth of vegetation of that area. (ii) Organisms
  4. 4More conservative and scientifically sound estimate made by Robert May places the global species diversity at about
  5. 5NPP (net primary productivity) is highest in
  6. 6Identify the correct sequence of steps involved in the process of decomposition. (a) Humification (b) Catabolism (c) Fragmentation of detrit
  7. 7The term _________ (smallest sustainable unit of biosphere) was proposed by ________.
  8. 8Identify the missing organisms - (1), (2), (3) and (4) in the following food web and select the correct option. (1) (2) (3) (4) (i) Deer Rab
  9. 9By the process of leaching, _________ nutrients go down into the soil horizon and get precipitated.
  10. 10Secondary productivity is defined as
  11. 11For an ecosystem, the two main structural features are - (i) Species composition (ii) Energy flow (iii) Decomposition (iv) Stratification
  12. 12Ecological succession is
  13. 13Detritivores break down detritus into smaller particles. This process is called
  14. 14Select the CORRECT match.
  15. 15Identify the likely organisms (1), (2), (3) and (4) in the food web shown below.
  16. 16Identify 1, 2, 3, 4 and 5 in the cycle given below.
  17. 17Find the incorrect statement.
  18. 18Given below is a phosphorus cycle. Select the incorrect statements from the following. (i) It represents phosphorus cycling in an aquatic ec
  19. 19A community that starts the process of succession in a habitat is called
  20. 20The definition given below describes: "The mass of living material at a trophic level at a particular time."
  21. 21What is Gross primary productivity (GPP)?
  22. 22The amount of nutrients such as carbon, nitrogen, phosphorus, calcium etc. present in the soil at any given time is referred to as
  23. 23The rate of decomposition is controlled by
  24. 24Which of the following factors play a role in primary productivity?
  25. 25Most animals in deep oceanic water are
  26. 26The pyramid of biomass shows a sharp _________________ at higher trophic levels.
  27. 27Identify the correct number of food chains in the given food web.
  28. 28Which of the following ecosystem has the maximum amount of biomass production?
  29. 29The pyramid given below can be observed in a:
  30. 30Select the correct relationship from the following.
  31. 31Which one of the following is a sedimentary biogeochemical cycle in ecosystem?
  32. 32If we completely remove the decomposers from an ecosystem, the ecosystem functioning will be adversely affected because:
  33. 33The rate of decomposition of detritus is accelerated
  34. 34Which of the following statement is not true?
  35. 35An ecotype is a type of species in which environmentally induced variations are
  36. 36Which of the following statements is incorrect?
  37. 37Select the incorrect statement.
  38. 38The rate of organic matter produced by producers in their bodies per unit time and area is called as
  39. 39If decomposers are removed, what will happen to the ecosystem?
  40. 40Which of the following statements is INCORRECT?
  41. 41If 10,000 J of energy is present at the T1 level, then what is the energy available at the T 2 level?
  42. 42In a complete study of grassland ecosystem and pond ecosystem, it may be observed that
  43. 43The correct sequence of organisms during hydrarch succession is:
  44. 44The proportion of assimilated energy consumed in respiration is highest in
  45. 45The trees occupy the top vertical strata of a forest, shrubs the second and herbs and grasses occupy the bottom layers, this represents
  46. 46In an aquatic ecosystem, the trophic level equivalent to cows in grasslands is:
  47. 47Pheretima and its close relatives derive nourishment from :
  48. 48Of the total incident solar radiation, the proportion of PAR is
  49. 49Consider the following statements concerning food chains. I. Removal of 80% tigers from an area resulted in greatly increased growth of vege
  50. 50The statement, 'Tiger is in the apex of food chain', indicates

Frequently Asked Questions

1.How many questions are available for Ecosystem?

This chapter includes 288 NEET NTA questions.

2.Are these questions only from NEET NTA, or from other exams too?

These are NEET NTA questions specifically for the Ecosystem chapter. Questions from other exams like NEET or AIIMS are organised separately under their respective exam sections.

3.What is the difficulty level of Ecosystem questions in NEET NTA?

Of the 288 questions analysed for this chapter, 100% are easy, 0% moderate and 0% tough. 2025 had the most, with 0 questions.

4.Which topics in Ecosystem should I focus on?

All of this chapter's questions come from a single topic: Uncategorized.