The starter of inoculum is added to the fresh milk in order to convert milk into curd, the term starter or inoculum here refer to

From the given below who increase vitamin $B_{12}$ in our stomach and too play very beneficial role in checking disease causing microbes ?

Swiss cheese is formed by the bacterium

Name a microbe used for the production of Swiss cheese.

Dosa and Idli are fermented preparation of rice and black gram. The fermentation is done with