Q20 / 288 · NTA Abhyas (NEET) 2020 · Botany · Ecosystem
The definition given below describes:
"The mass of living material at a trophic level at a particular time."
"The mass of living material at a trophic level at a particular time."
- AGross primary productivity
- BStanding state
- CNet primary productivity
- Correct answerDStanding crop
Solution
Standing crop is the total amount of living material in a specified population at a particular time, generally expressed as biomass. The standing crop may show variation at different times of the year.
Net Primary Productivity (NPP) is the rate at which plants incorporate atmospheric carbon through photosynthesis. (Definition)
Gross primary production (GPP) is the rate at which an ecosystem's producers capture and store a given amount of chemical energy as biomass in a given length of time. (Definition)
Net Primary Productivity (NPP) is the rate at which plants incorporate atmospheric carbon through photosynthesis. (Definition)
Gross primary production (GPP) is the rate at which an ecosystem's producers capture and store a given amount of chemical energy as biomass in a given length of time. (Definition)
Hence, the correct answer is option: 'D'.