yes they can. but if they are moved frequently it will dislocate the the pices. if the crack is minor it can be healed in few weeks.
The tissue cells reproduce and cover cuts, and for bones it is basically the same.
If bones are broken and heal, they always heal themselves when they are broken. All a doctor can do is see that they are properly set so they can heal properly and not at an angle. The body does the actual healing. A number of people walk around with improperly healed fractures.
It will probably heal on its own, but 'imperfectly.' If bones didn't heal by themselves, non-domestic animals would have much more frequent deaths.
Ligaments and tendons do not "heal" per se. They need to be operated on to repair them. Bones heal because they have the ability to repair and grow themselves more so than ligaments and tendons.
The periosteum multiplies to grow and repair bones when they break. If the bone is not set for proper repair by the periosteum, then it will heal as is.
It has not been scientifically proved that magnets can help heal bones.
If you mean pelvic bones then yes, they can.
Dolphins can heal themselves
Yes, all parts of wolverine's body can heal
when you do load bearing exercise it puts stress on your skeleton. the bones that comprise your skeleton are porous. that means there are microscopic holes in your bones. when you do exercise, the structure that makes up your bones can crack. it's only microscopic cracks and then they heal without you ever knowing. when they heal they grow back thicker and stronger.
The bones in a human stop hardening and growing at 25, possibly younger for a boy than a girl. After 25, the bones are set and unchangeable, and are no longer so quick to heal.
The bones themselves make up the bones. If you are asking the names of bones, there are 206 in an adult human. They are divided into two categories, the axial and the appendicular skeletons.