Q37 / 288 · NTA Abhyas (NEET) 2020 · Botany · Ecosystem

Select the incorrect statement.

  • A
    Energy always decreases with increases in trophic level.
  • B
    Secondary succession is faster than primary succession.
  • C
    Ecological pyramids cannot explain all the vital functions of any ecosystem.
  • Correct answer
    D
    The amount of nutrients present in the soil at any given time is referred to as the standing crop.

Solution

The amount of nutrients, such as carbon, nitrogen, phosphorus, calcium, present in the soil at any given time is referred to as the standing state.

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 mass of living organisms (biomass) or the number in a unit area.

Hence, the correct answer is option: 'D'.

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