How bones differ from cartilages ?

Mammalian bone is different from cartilage in

Mammalian bone differs from cartilage in the presence of

Spongy bone differs from compact bone is

What is a cartilage ? How is it different from a bone ?

Give an ilustrated account of cartilage . Mention the important features of different types of cartilages.

What is glycogen ? How is it different from starch ? How is starch structurally different from cellulose ?