An invertebrate is a classification of an animal which means that the animal does not have a spine. A good example of an invertebrate is a jellyfish. There are also some insects that are invertebrates, amny of which have exoskeletons, or a hard outer shell to protect them.
They sometimes have exoskeletons
invertebrate - has exoskeleton
An invertebrate.
It is an invertebrate 
no
The octopus is an invertebrate... It has no skeleton.
A bullfrog is not an invertebrate; it has a spine.
seriously? wow....... did you pass 4th grade? invertebrate
The function of the exoskeleton is to protect the internal organs and support the crayfish because it is an invertebrate.
An invertebrate doesnt have a backbone. A vertebrate has a backbone.
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).
invertebrate
invertebrate