Q. No.
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
1. lack of niche specialisation.
2. higher annual rainfall.
3. availability of fruits throughout the year.
4. temperature conducive for their breeding.
1. Secondary production
2. Primary production
3. Gross primary production
4. Net primary production
In the equation GPP – R = NPP, R represents:
1. Environment factor
2. Respiration losses
3. Radiant energy
4. Retardation factor
Which ecosystem has the maximum biomass?
1. Grassland ecosystem
2. Pond ecosystem
3. Lake ecosystem
4. Forest ecosystem
The mass of living material at a tropic level at a particular time is called:
2. standing state
3. net primary productivity
4. standing crop
In an ecosystem, the rate of production of organic matter during photosynthesis is termed as:
1. net primary productivity
2. gross primary productivity
3. secondary productivity
4. net productivity
Secondary productivity is the rate of formation of new organic matter by:
1. Parasite
2. Consumer
3. Decomposer
4. Producer
The biomass available for consumption by the herbivores and the decomposers is called:
1. net primary productivity
2. secondary productivity
3. standing crop
4. gross primary productivity
Which of the following is expected to have the highest value (gm/ /yr) in a grassland ecosystem:
1. Tertiary production
2. Gross production (GP)
3. Net production (NP)
4. Secondary production
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