

Systems biology studies these parts and how they work together. Our organs, tissues, cells, and the molecules they are made of, as well as bacteria and other organisms that live on our skin and in our digestive system, are all part of the system. Every human being, for example, is a system. It investigates how various living organisms interact at various scales. Systems biology approaches the study of living organisms holistically. Microbes, plants, animals, and entire ecosystems all play individual roles in the natural world, which is a complex system of interlocking parts. Systems biology studies how different living organisms at many scales interact.
