Secondary productivity is rate of formation of new organic matter by

Secondary productivity is rate of formation of new organic matter by
  1. producer
  2. parasite
  3. consumer
  4. decomposer

Solution

Secondary productivity is the rate of formation of new organic matter by consumers. Primary productivity depends on the producers inhabiting a particular area. Decomposers breakdown complex organic matter. Into inorganic substances like carbon dioxide water and nutrients. Parasitic species food on the body of ather organisms.

Asked in: NEET 2013 (All India)

Practice more Ecosystem questions on Aicharya