Radiocarbon dating
The process is called 'carbon dating'.
The tough organic material attaching bones to muscle is called a tendon.
Bones can decay like any other organic material. Sometimes, however, bones can be preserved in rock - those are called fossils.
In biology, detritus is non-living particulate organic material (as opposed to dissolved organic material). It typically includes the bodies or fragments of dead organisms as well as fecal material.
The organic material in bone, primarily collagen, provides flexibility and tensile strength, allowing bones to bend without breaking. It also helps in the repair and remodeling of bone tissue.
Tendons.
Cartilage
The child had more organic material in her bones, which allows bones to be more flexible, while her grandmother's bones are extensively calcified, with little organic material, and are probably thin due to osteoporosis.
Organic artifacts such as bones, wood, charcoal, and organic remains from archaeological sites can best be dated using radiocarbon dating. This method is not suitable for inorganic materials like rocks or metal artifacts.
cartilage
That special material is called as red bone marrow. You have red bone marrow in the skull bones, vertebrae, pelvic bones, ribs, scapula and sternum. In case of children,you have the red bone marrow in the cavity of the long bones, in addition to above mentioned flat bones.
No. The organic material has gradually been replaced over millions of years, so that fossils are basically stone.