The main properties of the living things are:
1. Chemical composition. Living beings consist of the same chemical elements as non-living, but in organisms, there are molecules of substances characteristic only of living
2. Discretion and integrity. Any biological system consists of separate parts.
3. Structural organization. Living systems are capable of creating specific structures.
4. Metabolism and energy. Living organisms are open systems that undergo an exchange of matter and energy with the environment.
5. Self-reproduction. Living organisms can form new molecules and structures that carry genetic information found in DNA molecules.
6. Heredity. A DNA molecule can store and transmit genetic information providing material continuity between generations.
7. Variability. Transmission of genetic information is associated with various deviations leading to changes in the characteristics and properties of the descendants.
8. Growth and development. Organisms inherit specific genetic information related to the possibility of the development of certain traits.
9. Irritability and movement. All living things selectively respond to external influences by specific reactions due to the property of irritability.