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NTA Abhyas NEET2020BotanyEcosystemPractice

The total dry weight accessible to heterotrophs in an ecosystem will form the:

Options

  1. AGross primary productivity
  2. BNet primary productivity
  3. CSecondary productivity
  4. DTertiary productivity

Correct answer

B. Net primary productivity

Step-by-step solution

Gross primary productivity of an ecosystem is the rate of production of organic matter during photosynthesis. A considerable amount of GPP is utilised by plants in respiration. Gross primary productivity minus respiration losses (R), is the net primary productivity (NPP). It is the available biomass for the consumption to heterotrophs (herbivores and decomposers)

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