A crab has an external hard shell, and is an invertebrate.
They providestrength and support for the body.
An Exoskeleton - external skeleton. Stops it getting omnomed
The skeleton and shell of a crab are synonymous. What we'd call the shell of a crab is simply a component of its exoskeleton, the external covering arthropods use made out of a tough protein, chitin.
They providestrength and support for the body.
External, meaning outside. Thus, Outside(External) Skeleton.
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.
No. Crabs are crustaceans.Mammals have fur or hair, are warm blooded, give birth and have an internal skeleton..Crustaceans are cold blooded, lay eggs and have an external skeleton (shell).
All but the crab do.
no they do not have an internal skeleton in order to grow they switch their shells
Crabs are invertebrate!Say the yeti crab has no backbone or spine so it is an invertebrate! Not vertebrate.Yes, all crabs are invertebrates, having an external skeleton (exoskeleton).
They providestrength and support for the body.
A Human skeleton,and a crab shell are alike because,the bones inside the human body are strong like the crab shell on the outside of the body