In an ecosystem rate of production of organicmatter during photosynthesis is termed as

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12.Ecosystem

normal

In an ecosystem the rate of production of organicmatter during photosynthesis is termed as

secondary productivity

net productivity

net primary productivity

gross primary productivity.

(NEET-2015)

Solution

(d) :The amount of energy accumulation in green plants as biomass or organic matter per unit area over a time period is known as primary productivity. The rate of total capture of energy, or the rate of total production of organic material (biomass), is known as gross primary productivity.

Standard 12

Biology