The microflora break down the herbivores' food for them, and in return, the microflora get a stable environment with a regular food supply.

The large intestine

Probiotics

Resident microflora are the normal, harmless microorganisms that permanently colonize various parts of the body, such as the skin, gut, and mucous membranes. These microorganisms play a role in maintaining the health of the host by competing with harmful pathogens and helping to regulate the immune system.

Yogurt