Question

Energy stored at the consumer level is :

• A. Gross primary productivity
• B. Net primary productivity
• C. Net productivity
• D. Secondary productivity

Answer 1

The correct option is D Secondary productivity

When consumers ingest producers, the chemical energy in the biomass of the producers is transferred to the consumers.

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. It is the rate of energy storage at consumer level. Consumer level includes herbivores, carnivores and decomposers. Gross primary productivity is the rate of photosynthesis. Net primary productivity is the rate of storage of organic matter except which is utilized for the respiration by plants. Net productivity is the rate of storage of organic matter which is not used by the consumers,

Thus, the correct answer is 'Secondary productivity.'