NTA Abhyas NEET2020BotanyEcosystemPractice
Which one is not correctly matched?
Options
- AProductivity - rate of biomass production
- BGross primary productivity - photoautotrophs
- CNet primary productivity - available biomass for consumption
- DSecondary productivity - formation of new organic matter in producer
Correct answer
D. Secondary productivity - formation of new organic matter in producer
Step-by-step solution
Carnivores are organisms which obtain nutrient by killing and eating other animals. These form the secondary consumers preceded by the herbivore in the food chain. The rate of assimilation of food energy by consumers is called secondary productivity and this energy is available to carnivores as they are the consumers. Total production of organic matter by the producers is called gross primary productivity and the energy left after utilization by producers is termed net primary productivity.