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Ecosystem Questions

Practice 35 Ecosystem questions with detailed answers and explanations. Free MCQs, PYQs, and mock test questions for NEET, JEE, GATE, SSC and more.

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35
Total Questions
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13
Easy
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21
Medium
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1
Hard
Practice by Exam:Biology(32)BIOLOGY(1)Environmental Studies(1)General Awareness(1)

About Ecosystem — practice questions, PYQs & concepts

Ecosystem is a frequently-tested topic on Biology, BIOLOGY, Environmental Studies. ExamTest.live currently lists 35 Ecosystem questions spanning previous-year papers from 2026 to 2026, each with worked solutions and a step-by-step explanation. Use the filters on this page to focus on a specific exam, difficulty level or year — every answer key is free, no sign-up required.

Ecosystem weight in competitive exams

Across our Ecosystem question bank, the largest sources are Biology (32), BIOLOGY (1), Environmental Studies (1) and General Awareness (1). Click any exam chip above to drill down to that exam-specific question set.

How to use this page

  • Start easy: 13 easy Ecosystem questions are available — build fluency before moving up.
  • Target weak years: Use the year filter to focus on the most recent 2026 paper or older PYQs you have not attempted.
  • Time yourself: Every question shows the average solve time so you can benchmark your speed against other students.
  • Read every explanation: Even on questions you got right — the explanation often surfaces a faster approach you can reuse.

All Ecosystem Questions(1–35 of 35)

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Q1mediummcqEnvironmental StudiesCompetitive Exam Practice Paper2026
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Which of the following types of pollution is cultural (accelerated) eutrophication?
Q2mediummcqBiologyNEET 20192026
0% accuracy
Which of the following ecological pyramids is generally inverted?
Q3mediummcqBiologyNEET (UG) 20172026
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Presence of plants arranged into well defined vertical layers depending on their height can be seen best in:
Q4easymcqBiologyNEET (UG) 20172026
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Which ecosystem has the maximum biomass?
Q5mediummcqGeneral AwarenessSSC CGL2026
Identify a mobile source of food.
Q6easymcqBiologyNEET 20212026
The amount of nutrients, such as carbon, nitrogen, phosphorus and calcium present in the soil at any given time, is referred as:
Q7mediummcqBiologyNEET 2020 E12026
In relation to Gross primary productivity and Net primary productivity of an ecosystem, which one of the following statements is correct?
Q8mediummcqBiologyNEET 2020 E12026
Match the trophic levels with their correct species examples in grassland ecosystem.| Column - I | Column - II || :--- | :--- || (a) Fourth trophic level | (i) Crow || (b) Second trophic level | (ii) Vulture || (c) First trophic level | (iii) Rabbit || (d) Third trophic level | (iv) Grass |
Q9mediummcqBIOLOGYNEET 20192026
Identify the possible link A in the following food chain:Green plant Insect Frog A Eagle
Q10mediummcqBiologyNEET (UG) 20182026
What type of ecological pyramid would be obtained with the following data?Secondary consumer : Primary consumer : Primary producer :
Q11easymcqBiologyNEET 20192026
The term ecosystem was coined by:
Q12easymcqBiologyNEET 20172026
Which ecosystem has the maximum biomass?
Q13easymcqBiologyNEET (UG) 20182026
Niche is:
Q14easymcqBiologyNEET 20172026
Presence of plants arranged into well defined vertical layers depending on their height can be seen best in:
Q15mediummcqBiologyBiology
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Mass of living matter at a trophic level in an area at any time is called:
Q16mediummcqBiologyBiology
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Large Woody Vines are more commonly found in:
Q17mediummcqBiologyBiology
During ecological succession:
Q18easymcqBiologyBiology
Which of the following would appear as the pioneer organisms on bare rocks?
Q19mediummcqBiologyBiology
Which one of the following is a characteristic feature of cropland ecosystem?
Q20mediummcqBiologyBiology
A system of rotating crops with legume or grass pasture to improve soil structure and fertility is called:
Q21easymcqBiologyBiology
Which one of the following is not used for construction of ecological pyramids ?
Q22mediummcqBiologyBiology
If of energy is trapped at the producer level, then how much energy will be available to the peacock in the following food chain?
Q23mediummcqBiologyBiology
In a terrestrial phosphorus cycle, what do the labels A, B, C, and D represent?
Q24easymcqBiologyBiology
Identify the possible line “A” in the following food chain:Plant insect frog “A” Eagle
Q25mediummcqBiologyBiology
The rate of formation of new organic matter by rabbit in a grassland, is called:
Q26hardmcqBiologyBiology
The second stage of hydrosere is occupied by plants like:
Q27mediummcqBiologyBiology
Identify the likely organisms (a), (b), (c) and (d) in the food web shown below:
image
Q28mediummcqBiologyBiology
Which one of the following animals may occupy more than one trophic levels in the same ecosystem at the same time?
Q29easymcqBiologyBiology
A renewable exhaustible natural resource is:
Q30mediummcqBiologyBiology
Which one of the following is one of the characteristics of a biological community?
Q31easymcqBiologyBiology
The biomass available for consumption by the herbivores and the decomposers is called:
Q32mediummcqBiologyBiology
Which two of the following statements concerning food chains are correct?(a) Removal of tigers results in increased vegetation growth.(b) Removal of most carnivores results in an increased deer population.(c) Food chains are generally limited to trophic levels due to energy loss.(d) Food chain length varies from to trophic levels.
Q33easymcqBiologyBiology
The slow rate of decomposition of fallen logs in nature is primarily due to their:
Q34easymcqBiologyBiology
About of total global carbon is found in:
Q35mediummcqBiologyBiology
Which of the following ecosystem types has the highest annual net primary productivity?

Frequently Asked Questions

How many Ecosystem questions are on ExamTest.live?▼
We have 35 Ecosystem questions spread across 1 pages, covering easy, medium, and hard difficulty levels with detailed explanations.
Are Ecosystem MCQs free?▼
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Which exams include Ecosystem questions?▼
Ecosystem questions are commonly asked in Biology, BIOLOGY, Environmental Studies, General Awareness. You can filter by exam using the links above.
How do I practice Ecosystem questions effectively?▼
Start with easy questions to build confidence, then tackle medium and hard ones. Use the filter buttons to sort by difficulty. Reveal the answer only after attempting each question, and read the explanation thoroughly.