Answer:
I'm white and used for cutting and grinding. When I'm damaged, humans usually remove or fill me. For most animals I am a useful tool. What am I?
You throw away my outside, you cook my inside. Then you eat my outside and you throw away my inside. What am I?
I saw the dead bring forth the living. I saw the living bring forth the dead. What did I see?
I save lives on the ground and in the air
I am a type of cheese made backwards
Almost everyone needs it, asks for it, gives it. But almost nobody takes it.