The ability of living organisms to respond to environmental influences by changing their state.

The ability of living organisms to respond to environmental influences by changing their state is called irritability. This ability is present only in living organisms. Irritability is an elementary reaction inherent in even the simplest organisms. The response to the environment in higher animals is called a reflex. It is carried out only in the presence of a nervous system.



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.