Knowledge

/

ArcaMax

What is the main structural molecule in hair and nails?

on

Published in Science Trivia

Collagen
Elastin
Keratin
Lecithin

Keratin. A rhinoceros's horn is made of keratin.

 

 

Comments

blog comments powered by Disqus

 

Related Channels

Danny Seo

EcoTips

By Danny Seo
Rob Kyff

The Word Guy

By Rob Kyff

Comics

Barney & Clyde Caption It Rick McKee Steve Sack Andy Capp Red and Rover