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Q. No.Identify the correct statements:
A:
Detrivores perform fragmentation.
B:
The humus is further degraded by some microbes during mineralization.
C:
Water soluble inorganic nutrients go down into the soil and get precipitated by a process called leaching.
D:
The detritus food chain begins with living organisms.
E:
Earthworms break down detritus into smaller particles by a process called catabolism.
Choose the correct answer from the options given below:
1.
D, E, A only
2.
A, B, C only
3.
B, C, D only
4.
C, D, E only
Subtopic: Decomposition |
82%
From NCERT
NEET - 2023
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In the equation
GPP is Gross Primary Productivity. NPP is net Primary Productivity. R here is ___________
1. Reproductive allocation
2. Photosynthetically active radiation
3. Respiratory quotient
4. Respiratory loss
GPP is Gross Primary Productivity. NPP is net Primary Productivity. R here is ___________
1. Reproductive allocation
2. Photosynthetically active radiation
3. Respiratory quotient
4. Respiratory loss
Subtopic: Ecosystem Productivity |
87%
From NCERT
NEET - 2023
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The amount of biomass or organic matter produced per unit area over a time period by plants during photosynthesis is called:
1. Secondary production
2. Primary production
3. Gross primary production
4. Net primary production
1. Secondary production
2. Primary production
3. Gross primary production
4. Net primary production
Subtopic: Ecosystem Productivity |
57%
From NCERT
NEET - 2022
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NEET 2025 - Target Batch
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Frugivorous birds are found in large numbers in tropical forests mainly because of :
1. lack of niche specialisation.
2. higher annual rainfall.
3. availability of fruits throughout the year.
4. temperature conducive for their breeding.
1. lack of niche specialisation.
2. higher annual rainfall.
3. availability of fruits throughout the year.
4. temperature conducive for their breeding.
Subtopic: Components & Types of Ecosystems | Ecosystem Productivity |
67%
NEET - 2022
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NEET 2025 - Target Batch
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Given below are two statements:
| Statement I: | Pyramid of energy is always upright and is the most efficient. |
| Statement II: | Pyramid of biomass in sea is generally inverted. |
In the light of the above statements, choose the most appropriate answer from the options given below:
1. Statement I is correct but Statement II is incorrect.
2. Statement I is incorrect but Statement II is correct.
3. Both Statement I and Statement II are correct.
4. Both Statement I and Statement II are incorrect.
Subtopic: Ecological Pyramids |
90%
From NCERT
NEET - 2022
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Which of the following is not correct regarding the decomposition of wastes?
| (a) | Low temperature inhibits decomposition |
| (b) | Warm and moist environment favors the process |
| (c) | The process is anaerobic |
| (d) | It is slower if detritus is rich in proteins and carbohydrates |
| (e) | Detritus is degraded into simpler inorganic substance by fungal and bacterial enzymes |
Choose the correct answer from the options given below:
| 1. | (b) and (c) only | 2. | (c), (a) and (d) only |
| 3. | (c) and (d) only | 4. | (c), (d) and (e) only |
Subtopic: Decomposition |
61%
From NCERT
NEET - 2022
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Identify the correct set of statements with regard to the properties of humus.
| (a) | Highly resistant to microbial action |
| (b) | Dark-colored amorphous substance |
| (c) | End product of detritus food chain |
| (d) | Reservoir of nutrients |
| (e) | Undergoes decomposition very fast |
Choose the correct answer from the options given below:
1. (a), (b), and (d) only
2. (a),(b) and (e) only
3. (a) and (b) only
4. (b), (c), and (a)
Subtopic: Decomposition |
82%
From NCERT
NEET - 2022
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NEET 2025 - Target Batch
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Detritivores breakdown detritus into smaller particles. This process is called:
| 1. Decomposition | 2. Catabolism |
| 3. Fragmentation | 4. Humification |
Subtopic: Decomposition |
79%
From NCERT
NEET - 2022
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NEET 2025 - Target Batch
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Given below are two statements:
In light of the above statements, choose the correct answer from the options given below:
| Statement I: | Decomposition is a process in which the detritus is degraded into simpler substances by microbes. |
| Statement II: | Decomposition is faster if the detritus is rich in lignin and chitin. |
In light of the above statements, choose the correct answer from the options given below:
| 1. | Statement I is incorrect but Statement II is correct. |
| 2. | Both Statement I and Statement II are correct. |
| 3. | Both Statement I and Statement II are incorrect. |
| 4. | Statement I is correct but Statement II is incorrect. |
Subtopic: Decomposition |
75%
From NCERT
NEET - 2022
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In an ecosystem, if the Net Primary Productivity (NPP) of first trophic level is \(100 x\left(\mathrm{kcal} ~\mathrm{m}^{-2}\right) \mathrm{yr}^{-1},\) what would be the GPP (Gross Primary Productivity) of the third trophic level of the same ecosystem?
1. \(x\left(\mathrm{kcal}~ \mathrm{m}^{-2}\right) y r^{-1}\)
2. \(10 x\left(\mathrm{kcal} ~\mathrm{m}^{-2}\right) \mathrm{yr}^{-1}\)
3. \(\dfrac{100 x}{3 x}\left(\mathrm{kcal} ~\mathrm{m}^{-2}\right) \mathrm{yr}^{-1}\)
4. \(\dfrac{x}{10}\left(\mathrm{kcal} ~\mathrm{m}^{-2}\right) y r^{-1}\)
1. \(x\left(\mathrm{kcal}~ \mathrm{m}^{-2}\right) y r^{-1}\)
2. \(10 x\left(\mathrm{kcal} ~\mathrm{m}^{-2}\right) \mathrm{yr}^{-1}\)
3. \(\dfrac{100 x}{3 x}\left(\mathrm{kcal} ~\mathrm{m}^{-2}\right) \mathrm{yr}^{-1}\)
4. \(\dfrac{x}{10}\left(\mathrm{kcal} ~\mathrm{m}^{-2}\right) y r^{-1}\)
Subtopic: Ecosystem Productivity | Energy Flow |
From NCERT
NEET - 2024
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