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You can classify them from how they are alike and how they are different.
What else can I help you with?
How would you classify a dog and a butterfly an invertebrate or a vertebrate?
A dog is a vertebrate because it has a backbone and a butterfly is a invertebrate because it doesnt have a backbone!
Is wind an invertebrate?
No. The terms vertebrate and invertebrate are used to classify animals. Wind is not an animal, nor is it even alive. It is simple the movement of air.
Is lobster a vertebrate or invertebrates?
invertebrate - has exoskeleton
Is a mussel an invertebrate or vertebrate?
An invertebrate.
Are ant vertebrate or invertebrate?
Yes, ants are invertebrates like all insects are. They do not have a backbone (spine) which is what would classify them as vertebrates. See related questions and links for additional details.
Is a conch a invertebrate or a invertebrate?
no
Is dragonflies an invertebrate?
It is an invertebrate 
Is the bullfrog an invertebrate?
A bullfrog is not an invertebrate; it has a spine.
Is a is a octopus a vertebrate or invertebrate?
The octopus is an invertebrate... It has no skeleton.
Is a housefly vertebrate or invertebrate?
seriously? wow....... did you pass 4th grade? invertebrate
What feature makes an invertebrate an invertebrate?
An invertebrate doesnt have a backbone. A vertebrate has a backbone.
Are crab vertebrate or invertebrate?
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).
