What is the meaning of the skeleton?

Serves as a support for the body and organs, participates in the implementation of movements in space, forms cavities to protect internal organs, participates in metabolism, performs a hematopoietic function.

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.