Ossification the the process that occurs when cartilage is replaced by bones!
Hip and knee bones can be replaced with an artifical device. A bone can be mended, have screws put in it or replaced. A metal plate can be replace a section of the skull. Not all bones can be replaced, though.
When a babtilage is slowly replaced by bones.
The answer to the question is the skull.
No; bones are not substituted for other bones. If human bones need to be replaced, they can be substituted for special metal and plastic materials.
No. Many bones can be removed and never replaced, such as the ribs, pieces of the spine, etc. In places where bones have cartilage or tendons, such as in the spine, knees, etc., you can have the bones fused. By having the bone fused, the joint is immobile, but you get to keep your bone(s). Some bones can be removed, but have to be replaced by fake bones or metal parts. This is more common in car crash victims, where bones are crushed and cannot be repaired.
Sometimes your bones may decay or give up. if you still Have them then you can hurt yourself so you have to change it
The Cartilage (baby bones) join together to make the bones that you have now.
The answer to this question is your Skeleton, this is how your bones grow larger or shrink
Bones in a living or recently dead creatures are mostly made of calcium. Ancient bones (fossils) are made of stone. The calcium has migrated out and been replaced by sediments that become stone.
A piece at a time, maybe; have your joints replaced with their latest Titanium substitute and by the time you're done with that, the rest of your skeleton may be available.
Your bones can not grow, that is why we have cell division. Cell division repairs muscles, because damaged cells are replaced with better ones.