marrow
No, you simply need your skin to be able to move, your muscles and bones are just the filling inside your skin.
The muscles are what do the moving, while the bones support you. It is the bones that make you able to make traction with the ground, while it is the muscles that pull the bones.
something hard has to hit the bone in order for it to break. something can inside you and can also make your bones break if possible.
No, they do not.
The muscles are what do the moving, while the bones support you. It is the bones that make you able to make traction with the ground, while it is the muscles that pull the bones.
Bones are light because they are hollow inside and filled primarily with marrow, a spongy substance which produces new red blood cells in large bones.
Birds have hollow bones to help them fly. Solid bones would add to much weight and make it impossible to fly. They have crisscross structures to add support inside the bones.
Bone marrow.
You Need Calcium! if you want your bones to be strong drink milk!
you need to make them spell "ten"
23 bones
There are 5 bones