Select Chapter Topics:
Q. No.Identify the correct set of statements with regard to 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 |
80%
From NCERT
NEET - 2022
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Which of the following are not correct regarding decomposition of wastes ?
| (a) | Low temperature inhibits decomposition |
| (b) | Warm and moist environment favours 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 |
66%
From NCERT
NEET - 2022
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
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 |
92%
From NCERT
NEET - 2022
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
The pioneer species in a hydrarch succession are :
| 1. | Free-floating angiosperms | 2. | Submerged rooted plants |
| 3. | Phytoplanktons | 4. | Filamentous algae |
75%
From NCERT
NEET - 2022
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
The species that come to appear in bare area are called :
| 1. | Pioneer species | 2. | Invasive species |
| 3. | Competitive species | 4. | Species of seral community |
89%
From NCERT
NEET - 2022
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
All successions irrespective of the habitat proceed to which type of climax community ?
| 1. | Xeric | 2. | Mesic |
| 3. | Hydrophytic | 4. | Edaphic |
88%
From NCERT
NEET - 2022
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
Match the List-I with List-II
Choose the correct answer from the options given below :
| List-I | List-II |
| (a) Carbon dissolved in oceans | (i) 55 billion tons |
| (b) Annual fixation of carbon through photosynthesis | (ii) 71% |
| (c) PAR captured by plants | (iii) \(4 \times 10^3 \)kg |
| (d) Productivity of oceans | (iv) 2 to 10% |
Choose the correct answer from the options given below :
| (a) | (b) | (c) | (d) | |
| 1. | (ii) | (iv) | (iii) | (i) |
| 2. | (iii) | (iv) | (ii) | (i) |
| 3. | (ii) | (iii) | (iv) | (i) |
| 4. | (iii) | (ii) | (i) | (iv) |
Subtopic: Ecosystem Productivity |
90%
From NCERT
NEET - 2022
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
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 |
Subtopic: Ecosystem Productivity |
From NCERT
NEET - 2022
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
The rate of formation of new organic matter by rabbits in grassland is called:
1. Net productivity
2. Secondary productivity
3. Net primary productivity
4. Gross primary productivity
Subtopic: Ecosystem Productivity |
83%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Which one of the following statements is correct for secondary succession?
1. It begins on a bare rock
2. It occurs on a deforested site
3. It follows the primary succession
4. It is similar to primary succession except that it has a relatively fast pace
67%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Select Chapter Topics:
© 2025 GoodEd Technologies Pvt. Ltd.