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What is the primary production in an ecosystem?

Options

  1. AThe rate of organic matter production in photosynthesis
  2. BThe rate of new organic matter formation by consumers
  3. CThe amount of energy produced by plants
  4. DThe rate of biomass production

Correct answer

A. The rate of organic matter production in photosynthesis

Step-by-step solution

A constant input of solar energy is the basic requirement for any ecosystem to function and sustain . Primary production is defined as the amount of biomass or organic matter produced per unit area over a time period by plants during photosynthesis. It is expressed in terms of weight (g m–2) or energy (kcal m–2). The rate of biomass production is called productivity. It is expressed in terms of gm–2 yr –1 or (kcal m–2) yr–1 to compare the productivity of different ecosystems. It can be divided into gross primary pr

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