Invertebrate means no spine all humans have a spine, but you could say someone is spineless in another sense.
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
Yes it is high. Wait, no it's not. You are pretty much 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