No, sea stars are echinoderms, they have no bones in their body, they have tubes that fill with water to help them move.
Crabs are invertebrates, animals without a backbone. As crustaceans, they have exoskeletons which are molted as they grow.
yes. they have back bones yes
yes it have back bones
yes ther is for all you pepel looking at this
Yes every mammal has back bones.
Yes, Starfish can and do eat each other sometimes.
yes
yes i think so
Yes they can
The starfish will regenerate another arm. The arm that was lost does not grow into another starfish.
yes
Yes, starfish are able to regenerate their limbs.