primarily for the protection of the crab, and as a defence to predators. however, if the crab has moulted recently, the new shell will be very soft, placing the crab in a highly vulnerable situation.
Bugs are invertebrates, which means they do not have a spine. Instead, they have a hard outer shell called an exoskeleton.
Noooooo! A crab is an arthropod! (invertabrate)
Yes, they are invertebrates as they don't have a spine or an internal skeleton.
Yes. It has a shell. Invertebrates have no backbone, vertebrates do. Invertebrates often have a hard external shell (like a mussel), or exoskeleton (like a crab), to protect them from predators.
a turtle
a very hard outer layer of the operating system, a bit like guy ruston from fulford school, he has a hard outer layer but is soft on the inside
No. All insects are "invertebrates," which means they have no bones whatsoever. They are also called "exoskeletal," which means that their skeletal structure (which holds them together) is the shell-like material on their outer surfaces.
The outer layer of a watermelon is called the rind or the peel. It is typically green in color and has a hard, smooth texture.
Yes! All invertebrates have hard outer body coverings to keep them in shape. But birds don't have hard outer body coverings. So they are vertebrates!
it's a sea animal with a hard outer covering ex. crab, lobster, etc.
The hard outer layer of the Earth is called the crust. It is made up of solid rock and is divided into tectonic plates that float on the semi-fluid mantle layer beneath. The crust is thinnest under the oceans and thicker beneath the continents.
A creature, such as a lobster, shrimp or crab that has no backbone, a hard outer shell, and usually lives in the water.