Question

What is the composition of the matrix of bones and cartilage?

Answer 1

Answer:

calcium carbonate

Explanation:

Answer 2

Explanation:

It is not as hard and rigid as bone, but it is much stiffer and much less flexible than muscle. The matrix of cartilage is made up of glycosaminoglycans, proteoglycans, collagen fibers and, sometimes, elastin. Because of its rigidity, cartilage often serves the purpose of holding tubes open in the body.

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