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Productivity Term Definition A. Gross Primary Productivity (GPP) 1. Biomass available for consumption by heterotrophs B. Net Primary Productivity (NPP) 2. Rate of production of organic matter during photosynthesis C. Secondary Productivity 3. Rate of new organic matter formation by consumers D. Decomposition 4. Breakdown of complex organic matter into inorganic substances

Options

  1. AA - 2, B - 1, C - 3, D - 4
  2. BA - 3, B - 2, C - 4, D - 1
  3. CA - 1, B - 4, C - 2, D - 3
  4. DA - 4, B - 3, C - 2, D - 1

Correct answer

A. A - 2, B - 1, C - 3, D - 4

Step-by-step solution

Gross Primary Productivity (GPP) (A) is the rate of production of organic matter during photosynthesis (2). Net Primary Productivity (NPP) (B) is the biomass available for consumption by heterotrophs (1). Secondary Productivity (C) is the rate of new organic matter formation by consumers (3). Decomposition (D) is the breakdown of complex organic matter into inorganic substances (4).

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