1. Tardigrade
  2. Question
  3. Biology
  4. Identify the correct match. 1. Stratification: Vertical distribution of different species occupying different levels. 2. Secondary productivity: Amount of biomass or organic matter produced per unit area over a time period by plants during photosynthesis. 3. Primary productivity: Rate of formation of new organic matter by consumers. 4. Decomposition: Break down complex organic matter into inorganic substances like carbon dioxide, water and nutrients.

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Q. Identify the correct match.
$1.$ Stratification: Vertical distribution of different species occupying different levels.
$2.$ Secondary productivity: Amount of biomass or organic matter produced per unit area over a time period by plants during photosynthesis.
$3.$ Primary productivity: Rate of formation of new organic matter by consumers.
$4.$ Decomposition: Break down complex organic matter into inorganic substances like carbon dioxide, water and nutrients.

NTA AbhyasNTA Abhyas 2020Ecosystem

Solution:

The amount of biomass or organic matter produced by plants by photosynthesis per unit area and over a period of time is called primary productivity. It is divided into gross and net primary productivity. The rate of production of organic matter by plants through photosynthesis is called gross primary productivity and the net primary productivity is availability of biomass for consumption by heterotrophs. Rate at which the new organic matter is produced by consumers is called secondary productivity.