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The enamel is the hardest substance in the body because it contains hydroxyapatite (crystalline calcium phosphate), a very highly calcified and hard organic material.
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What layer of the tooth is harder than bone?
Teeth are hard because of a crystal molecule they contain called hydroxyapatite. This molecule is part of teeth and bones and is what makes them resistant to bending or compressing. But teeth are harder than bones because the outer layer of enamel contains more hydroxyapatite than anything else in the body
Are rocks harder than teeth?
no, teeth are harder than rocks
If teeth are not bones how come on skeletons you see them?
Because if they where not on your skeketon they would fall out. Teeth are harder than bones. They are usually the last thing left over time and can even survive fires.
What is a difference between bone and cartilage. 1. bones are more flexible than cartilage 2. bones are harder than cartilage 3.bones are larger than cartilage?
Bones are of course harder
Is a stone harder than metal?
Yes
What is the bone that protect the teeth?
the teeth are covered by enamel, which is a hard mineralized surface of the teeth, much stronger than the bones
What can your teeth not do than the rest of your bones?
chew stuff and actually talk!
Why do shark have so many teeth?
They have so many teeth so they can eat predators bigger than them and use it also to chew their bones (if they have bones).
Can Labrador Retrievers have ice cubes?
Labs can have Ice cubes because they're just water, but be careful and make sure they're not too hard, because Ice is harder than bones, and this could hurt their teeth.
Are healthy teeth harder to knock out?
Yeah i think so . . . they would be harder to knock out because they are more healthy than older ones.
Is your teeth a bone?
No. Teeth are made of Dentin. Dentin supports the enamel on your teeth. It's a yellow bone-like material that's softer than enamel and carries some of the nerve fibers that tell you when something is going wrong inside your tooth. But it's still not bone, just bone-like. And on the outside is that harder than bone material, enamel.
In general the surface of a tree has a harder feel than does the surface of a dog what cell characteristic of each organism can be used to explain this difference?
All of their inside structures that make them up is why a tree feels harder than a dog.
