Question

also justify your answer☝☝​

Answer 1

Answer:

It's B option

Explanation:

Bcose it's a type of protein found on epithelial cells, which line the inside and outside surfaces of the body. Keratins help form the tissues of the hair, nails, and the outer layer of the skin. Keratin is a protective protein, less prone to scratching or tearing than other types of cells your body produces.

Answer 2

Answer:

option b , is the correct answer .

Explanation:

Keratin is one of a family of fibrous structural proteins known as scleroproteins. α-Keratin is a type of keratin found in vertebrates. It is the key structural material making up hair, nails, feathers, horns, claws, hooves, calluses, and the outer layer of skin among vertebrates

mark me and keep following...