The stratum corneum is the tough outer layer of the skin.
Land animals which have tough and dry skin are called reptiles:)
The epidermis is tough because it is a dense layer of skin cells held together by keratin, which is a hard protein. The epidermis is the outer layer of the skin.
Bowser is because of his tough skin and hard shell
A great white shark's skin feels rough and textured, similar to sandpaper. This unique texture comes from tiny, tooth-like structures called dermal denticles, which help reduce drag as they swim and protect against parasites. The skin is also quite tough, providing a formidable barrier against injuries in their ocean environment.
The main substance that makes nails tough and hard is a protein called keratin. Keratin is also found in hair and skin, providing structure and strength to these parts of the body. Proper hydration, diet, and nail care can also contribute to keeping nails healthy and strong.
The tough waterproof protein found in skin is called keratin. It forms a protective barrier on the surface of the skin, hair, and nails, providing strength and durability.
callouses
You could say The apple's skin was rather tough. The apple skin was rather tough is even better.
Spikes for protection from animals eating it Tough outer 'skin' so its hard for animals to eat
Yes! Tough but smooth
A tough waterproof skin.