I hope many people answer this one ^^ But my personal favorite is the jumping spider. There are many species, and I won´t go into that here, but seriously, look them up - they´re adorable. One of them was also awarded the title of most intelligent arthropod!
invertebrate - has exoskeleton
An invertebrate.
no
It is an invertebrate 
A bullfrog is not an invertebrate; it has a spine.
The octopus is an invertebrate... It has no skeleton.
seriously? wow....... did you pass 4th grade? 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
Invertebrate