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NTA Abhyas NEET2020BotanyEcosystemPractice

Consider the following statements (A - D) and select the option which correctly fills the blanks. A. A group of species belonging to a trophic level that exploits a common resource base in a similar fashion is known as (i). B. (ii) reduces decomposition and causes the pilling up of detritus. C. In oceans, productivity is limited by (iii) and (iv). D. The largest reservoir of calcium is (v).

Options

  1. A(i) (ii) (iii) (iv) (v) Guild Oxygen Nitrogen Light Rocks
  2. B(i) (ii) (iii) (iv) (v) Guild Anaerobic condition Light Nitrogen Rocks
  3. C(i) (ii) (iii) (iv) (v) Guild Aerobic respiration Phosphorus Dark Soil
  4. D(i) (ii) (iii) (iv) (v) Guild Anaerobic respiration Nitrogen Light Soil

Correct answer

B. (i) (ii) (iii) (iv) (v) Guild Anaerobic condition Light Nitrogen Rocks

Step-by-step solution

Guild refers to the group of species in a trophic level using the same resource in a similar manner. Decomposition is an oxygen-consuming process. The anaerobic condition leads to decrease in it and increases the amount of dead matter. The productivity of the ocean is limited by light and nitrogen. Calcium which is one of the essential elements in an organism has the largest reservoir in rocks (lithosphere).

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