Question
Biology Question on Eco-System
_____ is the rate of production of organic matter by consumers.
A
Primary productivity
B
Secondary productivity
C
Net primary productivity
D
Gross primary productivity
Answer
Secondary productivity
Explanation
Solution
The rate at which food energy is assimilated at the trophic level of consumers is called secondary productivity. In other words, the rate of synthesis of organic matter by consumers is called as secondary productivity. The primary producers have produced the food for consumers, and. secondary productivity reflects only the utilisation of this food for the production of consumer biomass.