The internal environment of any organism is made up of many different factors. They are all interconnected and depend on each other. For example – body temperature, humidity, internal pressure, and more. If some indicators change, then this entails a change in vital indicators. This can lead to death or disability. Also, there is the concept of “homeostasis”. This is the internal constancy of the organism. In humans, homeostasis means the same body temperature, heart rate, and other factors.
One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.