The mass of living material at a trophic level at a particular time is called
Correct answer: B. standing crop
- A. net primary productivity
- B. standing crop
- C. gross primary productivity
- D. standing state.
Explanation
Standing crop is the total amount of living material in a specified population at a particular time, expressed as biomass (standing biomass) or its equivalent in terms of energy. The standing crop may vary at different times of the year; for example, in a population of deciduous trees between summer and winter.
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