(1) Bacteria
The beneficial uses of bacteria include the production of traditional foods such as yoghurt, cheese, and vinegar; biotechnology and genetic engineering, producing substances such as drugs and vitamins; agriculture fibre retting; human and animal digestion; and biological control of pests.
(2) Fungai
Yeasts Or Fungai are crucial for the fermentation process that makes beer, wine, and bread. ...Some fungi are used in the production of soy sauce and t empeh, a source of protein used in Southeast Asia.
(3)Algae
Algae are used in Wastewater Treatment facilities, reducing the need for greater amounts of toxic chemicals that are already used. Algae can be used to capture fertilizers in runoff from farms. When subsequently harvested, the enriched algae itself can be used as fertilizer.