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Mass of living matter at a trophic level in an area at any time is called
A
Standing state
B
Standing crop
C
Detritus
D
Humus
Detailed Solution
Each trophic level has a certain mass of living material at a particular time, called the standing crop.
The standing crop is measured as the biomass of living organisms or as their number in a unit area.
Standing state is the amount of nutrients (such as carbon, nitrogen, phosphorus, calcium) present in the soil at any given time.
Detritus is dead plant and animal remains, and humus is the dark amorphous substance formed by its partial decomposition.
Hence the mass of living matter at a trophic level is called the standing crop.
The standing crop is measured as the biomass of living organisms or as their number in a unit area.
Standing state is the amount of nutrients (such as carbon, nitrogen, phosphorus, calcium) present in the soil at any given time.
Detritus is dead plant and animal remains, and humus is the dark amorphous substance formed by its partial decomposition.
Hence the mass of living matter at a trophic level is called the standing crop.