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.
A boxer crab protects itself by using anemones as a form of defense. It carries the stinging anemones in its claws, which it can use to deter predators. When threatened, the crab can wave its anemones to deliver a painful sting to potential attackers. This symbiotic relationship not only provides protection for the crab but also helps the anemones by allowing them to move to new areas for feeding.
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.
It protects it.
It protects itself
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.
A shell protects a hermit crab.
Crabs have no inner skeleton like humans do so the shell is its skeleton but on the outside of its body. The shell protects the crab from injury.