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Question
Gross primary productivity is the rate of production of ____ during photosynthesis.
Gross primary productivity is the rate of production of ____ during photosynthesis.
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Solution
The correct option is D Organic matter
In a food chain, energy stored at the producer level is called as primary productivity. Energy stored at the consumer level is called as secondary productivity. In other words, it is the rate of formation of new organic matter by consumers. It is the rate of energy storage at consumer level. Consumer level includes herbivores, carnivores and decomposers. Gross primary productivity is the rate of production of organic matter during photosynthesis. Net primary productivity is the rate of storage of organic matter except which is utilized for the respiration by plants. It is the total biomass available for consumers. Thus, the correct answer is 'Organic matter.'
In a food chain, energy stored at the producer level is called as primary productivity. Energy stored at the consumer level is called as secondary productivity. In other words, it is the rate of formation of new organic matter by consumers. It is the rate of energy storage at consumer level. Consumer level includes herbivores, carnivores and decomposers. Gross primary productivity is the rate of production of organic matter during photosynthesis. Net primary productivity is the rate of storage of organic matter except which is utilized for the respiration by plants. It is the total biomass available for consumers.
Thus, the correct answer is 'Organic matter.'
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