Which microbes are responsible for making curd from milk?

Indian curd is prepared by inoculating milk with:

Which processes are involved in the activity of $Lactobacillus$ bacteria?

Bacteria cannot be seen with the naked eyes,but these can be seen with the help of a microscope. If you have to carry a sample from your home to your biology laboratory to demonstrate the presence of microbes under a microscope,which sample would you carry and why?

Curding of milk takes place by

The microbe used for making bread is