The major constituent of vertebrate bone is
(a) potassium hydroxide
(b) sodium chloride
(c) calcium carbonate
(d) calcium phosphate
The correct option is (d) calcium phosphate.
Explanation:
Bone is a hard connective tissue that makes up most of the skeleton of vertebrates. It consists of fine-branched cells (osteoblasts) embedded in a matrix, which they have secreted.
