Question

bones are composed mostly of ______. a. magnesium b. vitamins c. calcium d. cartilage please select the best answer from the choices provided. a b c d

Explanation:

Bones have a mineralized matrix, and calcium is a major mineral component (along with phosphorus) that makes up most of the bone's structure. Magnesium is present in smaller amounts, vitamins are not the main component, and cartilage is a different connective tissue, not the main component of bone. So the correct answer is C.

Answer:

C. calcium