Question

9. The substance found in rhinoceroses' horns is also found in human
a) hair
b) bones
c)skin​

Answer 1

Answer:

hair is found in rhinoceros horn is also found in human

so the option is A

hope it will help you

Answer 2

Answer:

Rhinoceros' horns contain Keratin which is also found in human's hair.

HOPE IT HELPS YOU

Please mark me as BRAINLIEST....