- 1(current)
Q. No.Identify the incorrectly matched pair:
|
1. |
Vertical distribution of different species occupying different levels |
Stratification |
|
2. |
Mass of living material at a particular time at each trophic level |
Standing crop |
|
3. |
Rate of formation of new organic matter by consumers |
Net primary productivity |
|
4. |
The rate of production of organic matter during photosynthesis |
Gross primary productivity |
Subtopic: Ecosystem Productivity |
88%
From NCERT
To view explanation, please take trial in the course.
NEET 2026 - Target Batch - Vital
Hints
To view explanation, please take trial in the course.
NEET 2026 - Target Batch - Vital
Unlike terrestrial ecosystems, the majority of primary production in the ocean is:
| 1. | not dependent on the Sun as the source of energy |
| 2. | performed by phytoplankton |
| 3. | not limited by the availability of nitrogen |
| 4. | not important from a global perspective |
Subtopic: Ecosystem Productivity |
63%
From NCERT
To view explanation, please take trial in the course.
NEET 2026 - Target Batch - Vital
Hints
To view explanation, please take trial in the course.
NEET 2026 - Target Batch - Vital
Secondary productivity in an ecosystem can be defined as:
| 1. | The amount of chemical energy, typically expressed as carbon biomass, that primary producers create in a given length of time. |
| 2. | The rate at which all the autotrophs in an ecosystem produce net useful chemical energy. |
| 3. | The rate of formation of new organic matter by consumers. |
| 4. | The amount of energy released by the action of detritivores and decomposers in an ecosystem. |
Subtopic: Ecosystem Productivity |
86%
From NCERT
To view explanation, please take trial in the course.
NEET 2026 - Target Batch - Vital
Hints
To view explanation, please take trial in the course.
NEET 2026 - Target Batch - Vital
Which of the following correctly describes the secondary productivity in an ecosystem?
| 1. | The amount of chemical energy, typically expressed as carbon biomass, that primary producers create in a given length of time. |
| 2. | The rate at which all the autotrophs in an ecosystem produce net useful chemical energy. |
| 3. | The rate of formation of new organic matter by consumers. |
| 4. | The amount of energy released by the action of detritivores and decomposers in an ecosystem. |
Subtopic: Ecosystem Productivity |
88%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
What is the difference between Gross Primary Productivity (GPP) and Net Primary Productivity (NPP)?
| 1. | GPP is the total rate of photosynthesis, including both organic matter used in respiration and biomass accumulation; NPP is only the biomass accumulation. |
| 2. | GPP refers to the energy stored by consumers, while NPP refers to the energy stored by producers. |
| 3. | GPP is the total biomass accumulated, while NPP is the leftover energy after plants' metabolic needs are met. |
| 4. | NPP is always higher than GPP because it includes consumer productivity. |
Subtopic: Ecosystem Productivity |
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
- 1(current)
Q. No.
© 2025 GoodEd Technologies Pvt. Ltd.