Give the economic importance of heterotrophic bacteria
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Answer:
Heterotrophic bacteria
(1) Many bacteria like Lactobacillus helps in the production of curd from milk.
(2) They act as decomposers and help in the formation of humus e.g. Pseudomonas.
(3) Many antibiotics are obtained from some species of bacteria like streptomyces, Bacillus etc.
(4) Many soil bacteria help in fixation of atmospheric nitrogen like Rhizobium (Symbiotic), Azotobacter (Free living).
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Heterotrophic bacteria: They include saprotrophic, symbiotic and parasitic bacteria. They act as natural scavengers as they dispose off the dead bodies, organic wastes, release raw materials for reutilisation. They also help in sewage disposal, manure production etc. Symbiotic bacteria help in nitrogen fixation.