Question

Rate of formation of organic matter by rabbit in a grassland is

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

Answer 1

Answer: (D)

Secondary productivity

n a food chain, energy stored at the producer level is called as primary productivity. Producer level includes plants and other photosynthetic organisms. Energy stored at the consumer level is called as secondary productivity. Consumer level includes herbivores, carnivores and decomposers. Primary productivity is the rate of conversion of light energy into chemical energy of organic molecules in an ecosystem. Secondary productivity is the rate of formation of organic matter by consumers. Rate of formation of organic matter by rabbit in a grassland is secondary productivity.

Thus, the correct answer is 'Secondary productivity.'