Question

Hardest part in animal body is:(a) bone
(b) hair(c) dentine
(d) enamel

Answer 1

$\textbf{ Hello Mate! }$

$\textbf{ Thanks for your question }$

Hardest part in animal body is :

(a) bone
(b) hair
(c) dentine
(d) enamel.

Answer : Option (d) enamel ✔
Enamel is the harsest part of body

Well, its most common that people in first look give bone as a answer but it should be remembered that bones has the power of $\textbf{ regeneration }$.

Its natural that anything that has capability of regeneration has thin cell wall due to which it has cappability of division but enamels can't regenerate and hence have thick cell all and therefore they are harder than bone.

$\textbf{ Have great future ahead! }$

Answer 2

Explanation:

Enamel

Enamel, in anatomy, the hardest tissue of the body, covering part or all of the crown of the tooth in mammals. Enamel, when mature, consists predominantly of apatite crystals containing calcium and phosphate. Enamel is not living and contains no nerves.