Are bones living or non living

Are bones living or non living:
Bone is made up of organic and inorganic material.the inorganic part constitutes 2/3rd of entire bone substance and it includes mainly the compounds of calcium and phophorus.organic material is mainly collagen fibres./ although bone is made up of compounds of calcium and phosphorus but there are living cells associated with bones which bring about growth of bones and perform other functions eg, bone has concentric rings of bone cells osteocytes.the hollow cavity in the bone has bone marrow which give rise to red and white blood cells.external surface of the bone is covered by a membrane called periosteum.this membrane has outer fibrous and inner cellular layers and it has rich blood supply through fine blood vessels./ in this way bones are living as long as they are inside the living body.bones undergo growth and repair also.but, when bones are outside the body and the cellr associated with them become dead then bone is a non living structure.
 BY:ASHWANI KUMAR.BIO TEACHER AT VIGYAN TUTORIALS. PATEL NAGAR PHAGWARA 9846388266