What are the functions of such a property of an organism as homeostasis?

1) maintaining the constancy of the chemical composition of the internal environment of the body;
2) reaction to the action of extraneous factors and elimination of this influence;
3) ensuring adaptability to new environmental conditions.

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.