Question

The hardness of bone comes from _______________, whereas _________________ provide(s) some degree of flexibility.

Group of answer choices

A. Calcium carbonate; calcium phosphate

B. Proteins; collagen

C. Hydroxyapatite and other minerals; collagen fibers

D. Glycoproteins; proteoglycans

E. collagen and elastic fibers; minerals

Answer 1

Ans:-

C,

Hydroxyapatite And other minerals; collagen fibers.

The harness of the bone comes from hydroxyapatite and other minerals ( calcium and phosphate) , whereas collagen fibers provide (s) some degree of flexibility.

Hydroxyapatite and other minerals provide hardness because they are inorganic matter of the bone.

And collagen fibers provide some degree of flexibility because collagen fibers are proteins and they are organic material of the bone.

Rest of the given options are wrong because they are not correct explanation of the given question as they doesn't provide hardness and flexibility to the bone.