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Bones are hard because they must have the mechanical strength to support the weight of the animal (or the required proportion thereof, like in a whale) and facilitate the movement of that animal. Imagine trying to stand up if your leg bones were made of soft rubber. You couldn't. And could you reach across the table to pick up a glass of milk if your arm bones were made of that same soft rubber? Nope. Not happenin'.
They are hard because they contain a large proportion of calcium and phosphorus. In addition of providing leverage for movement (as noted above), they also protect parts of the body, like the brain, spinal cord, lungs, heart, and other internal organs. They also store minerals and make blood.
Wiki User
∙ 16y ago
Wiki User
∙ 12y agoBone cells and skin cells have different functions.
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What causes a bone to be hard or soft a bone to be hard or soft?
All bones are light, marrow bones are soft and compact bones are hard.
What is the name of the hard outer portion of most bones and the inner honeycomb portion?
the outer portionof most bones is a layer of hard compactbone called the "Cortex".
Does sodium make bones hard?
Bones are made up of calcium, phsophorus, sodium, protein, callagen and other minerals so yes sodium is needed to make bones hard.
The trace element most important for making bones hard?
Calcium
What are hard body parts that support your body?
The skeleton
What is the different of soft bones and hard bones?
soft you can bend and hard you can not
Are a seal's bones soft or hard?
Seal's bones are hard.
What causes a bone to be hard or soft a bone to be hard or soft?
All bones are light, marrow bones are soft and compact bones are hard.
How many bones does a a spider have?
Spiders do not have bones. They have exoskeletons which is a hard outer shell.
Are dolphins bones hard or soft?
Hard.
Are bones as hard as wood?
Yes bones are as hard as rock they can take up to 1,000 pounds of pressure
Why do bones have hard coating?
Bones have a hard coating to protect the nerves, marrow and blood vessels located in the cavity,
Does an insect called a walking stick have bones?
No insect have bones. They have a hard outer covering, but no bones.
How hard is a tiger bite?
Hard enough to crush your bones
Are dolphins bones hard?
Yes.
What mineral makes bones strong and hard?
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....
Bones of human?
in human body they are hard supporting structures called bones
