It uses its shell and its large pincer.
A long clawed hermit crab protects itself by hiding in it's protective shell or fighting back with its claws, or by putting its body in its hard shell.
the way the green crab protects itself is by using its claws and or its larger pincher
They can survive by plenty of heat and moisture
It is like a bone that protects the crab.
The shell may keep the crab warm.NJASK Practice choice.
Hermit crabs protect themselves by the shells they live in. By living in shells they are able to hide in them, away from predators.
mutualism
It protects itself
It protects it.
The boxer crab carries small anemones on its front legs to ward off attackers. The anemone might benefit by getting to eat the boxer crab's leftover food. If both benefit, it's mutualism. If only one benefits and the other is unharmed, it's commensalism.
The horseshoe crab protects it's self in the water by burrowing deep into the sand to hide. It also usues it's tail to scare away predators. The shell on top protects the fragile insides, on the underneath of the crab. However, if it is flipped over on it's back, it will use it's telson "tail" by digging it into the sand and flipping itself upright. On land the only way the horseshoe crab can protect itself it by staying right side up. If it is flipped over, it cannot flip itself upright on land, and his body parts will be exposed to predators such as birds, and other land crabs. So if you are walking along a beach and find a horseshoe crab on it's back, give it a hand and flip it over.It protects itself by removing the horseshoe on its feet and creating a layer of armor around it's body. The horseshoe gets damaged in the process and must be discarded but just like the starfish it can regrow it's horseshoes and once again walk safely on land.