State two economically important uses of:- a) Heterotrophic bacteria b) Archaebacteria
(a) Heterotrophic bacteria:- 1) Nitrogen fixation in roots of leguminous plants 2) Being decomposers, used in production of antibiotics (b) Archaebacteria 1) Production of biogas from cow dung 2) Lives in guts of ruminants animals & help them in digestion of starch
