milk
milk
calcium
calcium and antioxidants
Mineral salts from calcium and phosphorus compounds are essential for making bones hard and strong. calcium is the most essential mineral to make bones strong but not all bones are as hard as you think some bones are "Spongy" but we just dont notice it. hope this helps if you need to know this....
It makes them hard and strong, in the form of the mineral "calcium carbonate".
It contains calcium which is a substance that does not weight. Therefore it makes bones be strong and hard. If you took the calcium, the bones would be flexible and not hard at all.
Calcified bones are hard but not really solid. Spongy bone is hard with tiny holes in it. Periosteum is thin but very strong. The other name for it is outer membrane, it helps to rebuild bone cells. The last is cartilage. It is strong material that holds two bones together and allows them to glide over one another. Skull iz also a very strong bone.
Stong, flexible, and soft are the best descriptor of bones.
calcium
lololollolololo
Calcium makes them hard.
Calcium