Can a modern man live without living organisms?

Modern man cannot live without living organisms. This is basically impossible. This is because people take from other organisms everything they need for life. The most important thing is food. We eat plant and animal foods. We cannot make synthetic food. We create various medicines from plants, animals, bacteria and fungi. In addition, other living organisms provide maintenance of the climate and the amount of oxygen. Plants and plankton are directly involved in the gas exchange of nature. Therefore, we are directly dependent on other living organisms.