Multiple choice general knowledge science & technology

what is the horn of a rhino?

  1. Its teeth

  2. Its bone

  3. Its hair

  4. Its muscle

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

A rhino's horn is composed entirely of keratin - the same protein that makes up human hair and fingernails. It's not bone, teeth, or muscle tissue. This is why rhino horns can grow back if cut, unlike true horns which are permanent bone structures.