Yes crabs are invertebrates, they have a hard body covering so they have no need for a backbone.
Yes, they must molt in order to grow.
mostly fish,squid,crabs,mollusks,small invertabrates.
invertabrates such as crabs, lobsters, and other shelfish have no backcones. also hard-shelled insects such as ants There are many animals with no backbone, so here are three: fish, crabs, and snails.
Invertabrates are not divided; if they were, they'd die.
Well what makes them invertabrates is that they don't have back bones or spine.
there is no difference because they are the same thing. ( look at you spelling)
No
no
no
No
YES!
Yes