The role of bacteria in nature and human life

Bacteria are very important in human life and the biological system as a whole. For humans, some species are important that live in the intestines and form the microflora. They aid in digestion as they secrete some digestive enzymes. We use lactic acid bacteria to create many foods. They are very helpful to us. Bacteria are involved in the breakdown of organic matter into inorganic. This is how the circulation of substances of inorganic origin takes place, which are used by other living organisms.