The Hardest Biologically Manufactured Substance in the Body is ________

Question

The hardest biologically manufactured substance in the body is ________.
A) bone
B) cementum
C) dentine
D) pulp
E) enamel

Accepted Answer

Enamel is the hardest biologically manufactured substance in the body. It covers the outer layer of the teeth and is composed of a uniquely dense mineral called hydroxyapatite.