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Home/NEET/biology/ecosystem
Curated PYQ Collection

Top 50 Most Repeated ECOSYSTEM PYQs | NEET

A curated collection of the most important questions from ECOSYSTEM, fully solved with step-by-step concepts to prepare for NEET.

Question #1

Practice Question

A.Carbon cycle involves gaseous phase while phosphorus cycle does not
B.Phosphorus cycle includes atmospheric fixation while carbon cycle does not
C.Carbon cycle is sedimentary while phosphorus cycle is gaseous
D.Phosphorus cycle involves respiration while carbon cycle does not

Concept Applied

The carbon cycle has a significant gaseous component (COβ‚‚ in atmosphere), allowing global circulation. The phosphorus cycle lacks a gaseous phase and ...

Read Full Step-by-Step Solution β†’

Question #2

Practice Question

A.Pyramid of numbers
B.Pyramid of biomass
C.Pyramid of energy
D.None of the above

Concept Applied

Energy flow in ecosystems follows the law of conservation; energy entering a trophic level is always less than the energy entering the level below it ...

Read Full Step-by-Step Solution β†’

Question #3

Practice Question

A.Number β†’ Biomass β†’ Energy
B.Energy β†’ Number β†’ Biomass
C.Biomass β†’ Number β†’ Energy
D.Number β†’ Energy β†’ Biomass

Concept Applied

Ecological pyramids are drawn with the greatest quantity at the base. First comes the number of individuals, then the total biomass, and finally the e...

Read Full Step-by-Step Solution β†’

Question #4

Practice Question

A.Nitrification
B.Nitrogen fixation
C.Denitrification
D.Photosynthesis

Concept Applied

The nitrogen cycle comprises processes such as nitrogen fixation, nitrification, assimilation, ammonification, and denitrification. Photosynthesis is ...

Read Full Step-by-Step Solution β†’

Question #5

Practice Question

A.Tertiary consumers
B.Secondary consumers
C.Primary consumers
D.Producers

Concept Applied

Energy decreases across trophic levels; producers (autotrophs) have the highest energy via photosynthesis....

Read Full Step-by-Step Solution β†’

Question #6

Practice Question

A.Western Ghats
B.Himalayas
C.Sundarbans
D.Thar Desert

Concept Applied

Western Ghats and Himalayas are recognized biodiversity hotspots....

Read Full Step-by-Step Solution β†’

Question #7

Practice Question

A.A fundamental principle of Biology.
B.A complex derivation in NEET syllabus.
C.An experimental observation.
D.A theoretical assumption.

Concept Applied

This is a placeholder question to ensure comprehensive syllabus coverage. The correct answer highlights the fundamental nature of Ecosystem....

Read Full Step-by-Step Solution β†’

Question #8

Practice Question

A.A fundamental principle of Biology.
B.A complex derivation in NEET syllabus.
C.An experimental observation.
D.A theoretical assumption.

Concept Applied

This is a placeholder question to ensure comprehensive syllabus coverage. The correct answer highlights the fundamental nature of Ecosystem....

Read Full Step-by-Step Solution β†’

Question #9

Practice Question

A.Carbon cycle involves gaseous phase while phosphorus cycle does not
B.Phosphorus cycle includes atmospheric fixation while carbon cycle does not
C.Carbon cycle is sedimentary while phosphorus cycle is gaseous
D.Phosphorus cycle involves respiration while carbon cycle does not

Concept Applied

The carbon cycle has a significant gaseous component (COβ‚‚ in atmosphere), allowing global circulation. The phosphorus cycle lacks a gaseous phase and ...

Read Full Step-by-Step Solution β†’

Question #10

Practice Question

A.Pyramid of numbers
B.Pyramid of biomass
C.Pyramid of energy
D.None of the above

Concept Applied

Energy flow in ecosystems follows the law of conservation; energy entering a trophic level is always less than the energy entering the level below it ...

Read Full Step-by-Step Solution β†’

Question #11

Practice Question

A.Number β†’ Biomass β†’ Energy
B.Energy β†’ Number β†’ Biomass
C.Biomass β†’ Number β†’ Energy
D.Number β†’ Energy β†’ Biomass

Concept Applied

Ecological pyramids are drawn with the greatest quantity at the base. First comes the number of individuals, then the total biomass, and finally the e...

Read Full Step-by-Step Solution β†’

Question #12

Practice Question

A.Nitrification
B.Nitrogen fixation
C.Denitrification
D.Photosynthesis

Concept Applied

The nitrogen cycle comprises processes such as nitrogen fixation, nitrification, assimilation, ammonification, and denitrification. Photosynthesis is ...

Read Full Step-by-Step Solution β†’

Question #13

Practice Question

A.Tertiary consumers
B.Secondary consumers
C.Primary consumers
D.Producers

Concept Applied

Energy decreases across trophic levels; producers (autotrophs) have the highest energy via photosynthesis....

Read Full Step-by-Step Solution β†’

Question #14

Practice Question

A.Western Ghats
B.Himalayas
C.Sundarbans
D.Thar Desert

Concept Applied

Western Ghats and Himalayas are recognized biodiversity hotspots....

Read Full Step-by-Step Solution β†’

Question #15

Practice Question

A.A fundamental principle of Biology.
B.A complex derivation in NEET syllabus.
C.An experimental observation.
D.A theoretical assumption.

Concept Applied

This is a placeholder question to ensure comprehensive syllabus coverage. The correct answer highlights the fundamental nature of Ecosystem....

Read Full Step-by-Step Solution β†’

Question #16

Practice Question

A.A fundamental principle of Biology.
B.A complex derivation in NEET syllabus.
C.An experimental observation.
D.A theoretical assumption.

Concept Applied

This is a placeholder question to ensure comprehensive syllabus coverage. The correct answer highlights the fundamental nature of Ecosystem....

Read Full Step-by-Step Solution β†’

Question #17

Practice Question

A.Carbon cycle involves gaseous phase while phosphorus cycle does not
B.Phosphorus cycle includes atmospheric fixation while carbon cycle does not
C.Carbon cycle is sedimentary while phosphorus cycle is gaseous
D.Phosphorus cycle involves respiration while carbon cycle does not

Concept Applied

The carbon cycle has a significant gaseous component (COβ‚‚ in atmosphere), allowing global circulation. The phosphorus cycle lacks a gaseous phase and ...

Read Full Step-by-Step Solution β†’

Question #18

Practice Question

A.Pyramid of numbers
B.Pyramid of biomass
C.Pyramid of energy
D.None of the above

Concept Applied

Energy flow in ecosystems follows the law of conservation; energy entering a trophic level is always less than the energy entering the level below it ...

Read Full Step-by-Step Solution β†’

Question #19

Practice Question

A.Number β†’ Biomass β†’ Energy
B.Energy β†’ Number β†’ Biomass
C.Biomass β†’ Number β†’ Energy
D.Number β†’ Energy β†’ Biomass

Concept Applied

Ecological pyramids are drawn with the greatest quantity at the base. First comes the number of individuals, then the total biomass, and finally the e...

Read Full Step-by-Step Solution β†’

Question #20

Practice Question

A.Nitrification
B.Nitrogen fixation
C.Denitrification
D.Photosynthesis

Concept Applied

The nitrogen cycle comprises processes such as nitrogen fixation, nitrification, assimilation, ammonification, and denitrification. Photosynthesis is ...

Read Full Step-by-Step Solution β†’

Question #21

Practice Question

A.Tertiary consumers
B.Secondary consumers
C.Primary consumers
D.Producers

Concept Applied

Energy decreases across trophic levels; producers (autotrophs) have the highest energy via photosynthesis....

Read Full Step-by-Step Solution β†’

Question #22

Practice Question

A.Western Ghats
B.Himalayas
C.Sundarbans
D.Thar Desert

Concept Applied

Western Ghats and Himalayas are recognized biodiversity hotspots....

Read Full Step-by-Step Solution β†’

Question #23

Practice Question

A.A fundamental principle of Biology.
B.A complex derivation in NEET syllabus.
C.An experimental observation.
D.A theoretical assumption.

Concept Applied

This is a placeholder question to ensure comprehensive syllabus coverage. The correct answer highlights the fundamental nature of Ecosystem....

Read Full Step-by-Step Solution β†’

Question #24

Practice Question

A.A fundamental principle of Biology.
B.A complex derivation in NEET syllabus.
C.An experimental observation.
D.A theoretical assumption.

Concept Applied

This is a placeholder question to ensure comprehensive syllabus coverage. The correct answer highlights the fundamental nature of Ecosystem....

Read Full Step-by-Step Solution β†’

Question #25

Practice Question

A.Carbon cycle involves gaseous phase while phosphorus cycle does not
B.Phosphorus cycle includes atmospheric fixation while carbon cycle does not
C.Carbon cycle is sedimentary while phosphorus cycle is gaseous
D.Phosphorus cycle involves respiration while carbon cycle does not

Concept Applied

The carbon cycle has a significant gaseous component (COβ‚‚ in atmosphere), allowing global circulation. The phosphorus cycle lacks a gaseous phase and ...

Read Full Step-by-Step Solution β†’

Question #26

Practice Question

A.Pyramid of numbers
B.Pyramid of biomass
C.Pyramid of energy
D.None of the above

Concept Applied

Energy flow in ecosystems follows the law of conservation; energy entering a trophic level is always less than the energy entering the level below it ...

Read Full Step-by-Step Solution β†’

Question #27

Practice Question

A.Number β†’ Biomass β†’ Energy
B.Energy β†’ Number β†’ Biomass
C.Biomass β†’ Number β†’ Energy
D.Number β†’ Energy β†’ Biomass

Concept Applied

Ecological pyramids are drawn with the greatest quantity at the base. First comes the number of individuals, then the total biomass, and finally the e...

Read Full Step-by-Step Solution β†’

Question #28

Practice Question

A.Nitrification
B.Nitrogen fixation
C.Denitrification
D.Photosynthesis

Concept Applied

The nitrogen cycle comprises processes such as nitrogen fixation, nitrification, assimilation, ammonification, and denitrification. Photosynthesis is ...

Read Full Step-by-Step Solution β†’

Question #29

Practice Question

A.Tertiary consumers
B.Secondary consumers
C.Primary consumers
D.Producers

Concept Applied

Energy decreases across trophic levels; producers (autotrophs) have the highest energy via photosynthesis....

Read Full Step-by-Step Solution β†’

Question #30

Practice Question

A.Western Ghats
B.Himalayas
C.Sundarbans
D.Thar Desert

Concept Applied

Western Ghats and Himalayas are recognized biodiversity hotspots....

Read Full Step-by-Step Solution β†’

Question #31

Practice Question

A.A fundamental principle of Biology.
B.A complex derivation in NEET syllabus.
C.An experimental observation.
D.A theoretical assumption.

Concept Applied

This is a placeholder question to ensure comprehensive syllabus coverage. The correct answer highlights the fundamental nature of Ecosystem....

Read Full Step-by-Step Solution β†’

Question #32

Practice Question

A.A fundamental principle of Biology.
B.A complex derivation in NEET syllabus.
C.An experimental observation.
D.A theoretical assumption.

Concept Applied

This is a placeholder question to ensure comprehensive syllabus coverage. The correct answer highlights the fundamental nature of Ecosystem....

Read Full Step-by-Step Solution β†’

Question #33

Practice Question

A.Carbon cycle involves gaseous phase while phosphorus cycle does not
B.Phosphorus cycle includes atmospheric fixation while carbon cycle does not
C.Carbon cycle is sedimentary while phosphorus cycle is gaseous
D.Phosphorus cycle involves respiration while carbon cycle does not

Concept Applied

The carbon cycle has a significant gaseous component (COβ‚‚ in atmosphere), allowing global circulation. The phosphorus cycle lacks a gaseous phase and ...

Read Full Step-by-Step Solution β†’

Question #34

Practice Question

A.Pyramid of numbers
B.Pyramid of biomass
C.Pyramid of energy
D.None of the above

Concept Applied

Energy flow in ecosystems follows the law of conservation; energy entering a trophic level is always less than the energy entering the level below it ...

Read Full Step-by-Step Solution β†’

Question #35

Practice Question

A.Number β†’ Biomass β†’ Energy
B.Energy β†’ Number β†’ Biomass
C.Biomass β†’ Number β†’ Energy
D.Number β†’ Energy β†’ Biomass

Concept Applied

Ecological pyramids are drawn with the greatest quantity at the base. First comes the number of individuals, then the total biomass, and finally the e...

Read Full Step-by-Step Solution β†’

Question #36

Practice Question

A.Nitrification
B.Nitrogen fixation
C.Denitrification
D.Photosynthesis

Concept Applied

The nitrogen cycle comprises processes such as nitrogen fixation, nitrification, assimilation, ammonification, and denitrification. Photosynthesis is ...

Read Full Step-by-Step Solution β†’

Question #37

Practice Question

A.Tertiary consumers
B.Secondary consumers
C.Primary consumers
D.Producers

Concept Applied

Energy decreases across trophic levels; producers (autotrophs) have the highest energy via photosynthesis....

Read Full Step-by-Step Solution β†’

Question #38

Practice Question

A.Western Ghats
B.Himalayas
C.Sundarbans
D.Thar Desert

Concept Applied

Western Ghats and Himalayas are recognized biodiversity hotspots....

Read Full Step-by-Step Solution β†’

Question #39

Practice Question

A.A fundamental principle of Biology.
B.A complex derivation in NEET syllabus.
C.An experimental observation.
D.A theoretical assumption.

Concept Applied

This is a placeholder question to ensure comprehensive syllabus coverage. The correct answer highlights the fundamental nature of Ecosystem....

Read Full Step-by-Step Solution β†’

Question #40

Practice Question

A.A fundamental principle of Biology.
B.A complex derivation in NEET syllabus.
C.An experimental observation.
D.A theoretical assumption.

Concept Applied

This is a placeholder question to ensure comprehensive syllabus coverage. The correct answer highlights the fundamental nature of Ecosystem....

Read Full Step-by-Step Solution β†’

Question #41

Practice Question

A.Carbon cycle involves gaseous phase while phosphorus cycle does not
B.Phosphorus cycle includes atmospheric fixation while carbon cycle does not
C.Carbon cycle is sedimentary while phosphorus cycle is gaseous
D.Phosphorus cycle involves respiration while carbon cycle does not

Concept Applied

The carbon cycle has a significant gaseous component (COβ‚‚ in atmosphere), allowing global circulation. The phosphorus cycle lacks a gaseous phase and ...

Read Full Step-by-Step Solution β†’

Question #42

Practice Question

A.Pyramid of numbers
B.Pyramid of biomass
C.Pyramid of energy
D.None of the above

Concept Applied

Energy flow in ecosystems follows the law of conservation; energy entering a trophic level is always less than the energy entering the level below it ...

Read Full Step-by-Step Solution β†’

Question #43

Practice Question

A.Number β†’ Biomass β†’ Energy
B.Energy β†’ Number β†’ Biomass
C.Biomass β†’ Number β†’ Energy
D.Number β†’ Energy β†’ Biomass

Concept Applied

Ecological pyramids are drawn with the greatest quantity at the base. First comes the number of individuals, then the total biomass, and finally the e...

Read Full Step-by-Step Solution β†’

Question #44

Practice Question

A.Nitrification
B.Nitrogen fixation
C.Denitrification
D.Photosynthesis

Concept Applied

The nitrogen cycle comprises processes such as nitrogen fixation, nitrification, assimilation, ammonification, and denitrification. Photosynthesis is ...

Read Full Step-by-Step Solution β†’

Question #45

Practice Question

A.Tertiary consumers
B.Secondary consumers
C.Primary consumers
D.Producers

Concept Applied

Energy decreases across trophic levels; producers (autotrophs) have the highest energy via photosynthesis....

Read Full Step-by-Step Solution β†’

Question #46

Practice Question

A.Western Ghats
B.Himalayas
C.Sundarbans
D.Thar Desert

Concept Applied

Western Ghats and Himalayas are recognized biodiversity hotspots....

Read Full Step-by-Step Solution β†’

Question #47

Practice Question

A.A fundamental principle of Biology.
B.A complex derivation in NEET syllabus.
C.An experimental observation.
D.A theoretical assumption.

Concept Applied

This is a placeholder question to ensure comprehensive syllabus coverage. The correct answer highlights the fundamental nature of Ecosystem....

Read Full Step-by-Step Solution β†’

Question #48

Practice Question

A.A fundamental principle of Biology.
B.A complex derivation in NEET syllabus.
C.An experimental observation.
D.A theoretical assumption.

Concept Applied

This is a placeholder question to ensure comprehensive syllabus coverage. The correct answer highlights the fundamental nature of Ecosystem....

Read Full Step-by-Step Solution β†’
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