MCQ
Which of the following is formed by producers in ecosystem?
  • A
    Net primary productivity
  • B
    Gross primary productivity
  • C
    Net secondary productivity
  • Primary productivity

Answer

Correct option: D.
Primary productivity
In an ecosystem, the rate of production or accumulation of organic matter per unit area per unit time is called productivity.
Plants are autotrophic. They perform photosynthesis by using solar energy to synthesize their own food. Hence they are the producers in an ecosystem.
The rate at which solar energy is stored by producers is called primary productivity.

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