The rate of formation of new organic matter by rabbit in a grassland is called

The correct option is A Secondary productivity. The rate of accumulation of biomass at primary consumer level is termed as productivity. The rate at which these consumers convert the chemical energy of their food into their own biomass is called as secondary productivity. Secondary production is the rate at which animals produce their organic matter by feeding on other organisms. The efficiency at which energy is transferred from one trophic level to another is called ecological efficiency. On average it is estimated that there is only a 10 percent transfer of energy