What forming over the ends of fingers prevents injury?
tissue keratin hairs needles shells bone Cartilage tiny hairs
A B C D E F G H
Fingernails are also made of keratin.
Keratin forming over the ends of fingers prevents injury
What forming over the ends of fingers prevents injury? (A) tissue (B) keratin (C) hairs (D) needles (E) shells (F) bone (G) Cartilage (H) tiny hairs