Read the following statements regarding the components of an ecosystem: A. Standing state is the amount of inorganic nutrients present in the soil at any given time. B. Standing crop is measured as the mass of living organisms or the number in a unit area. C. The standing state of an ecosystem remains constant throughout the year. D. Standing crop includes the detritus and non-living organic matter in the soil. How m

Step-by-step solution

Statement A is correct: The amount of nutrients, such as carbon, nitrogen, phosphorus, and calcium, present in the soil at any given time is referred to as the standing state. Statement B is correct: Each trophic level has a certain mass of living material at a particular time called the standing crop, which is measured as the mass of living organisms (biomass) or the number in a unit area. Statement C is incorrect: The standing state is not constant; it varies in different kinds of ecosystems and also on a seasona