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Invertebrates do not have a vertebral column (spine), they do not have internal skeletons, they are missing central nervous systems with brains, and most of them don't have a distinguishable head with sensory organs at the front of their bodies. For more information see the related links.
An invertebrate is missing a spinal cord!
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∙ 6y ago
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What does a jellyfish lack to be an invertebrate?
a backbone
What part do invertebrates lack?
Vertebrates (like humans) have a backbone. Invertebrates (like worms) lack a backbone.
Is Ascaris an invertebrate why?
Yes , because is lack backbone .
What do invertebrate jellyfish lack that all other fish process?
spine
Is a giant stick insect a vertebrate or an invertebrate?
Since giant stick insects are insects, and all insects lack a backbone, they are invertebrates. Vertebrate = has a backbone, invertebrate = has no backbone
Are spnges and cnidarians verebrate or invertebrate?
I assume you mean sponges, and they are obviously invertabrates (they lack a back bone).
Is a wasp an invertebrate?
Yes, all insects lack an internal skeleton and backbone so they are by definition invertebrates.
Is a flat worm invertebate?
Yes. Flatworms lack a skeletal structure, and any creature without a skeletal structure is classified as an invertebrate.
Is lobster a vertebrate or invertebrates?
invertebrate - has exoskeleton
Is a mussel an invertebrate or vertebrate?
An invertebrate.
Is a short-eared owl an invertebrate?
No: Short-eared Owls, as well as every other owl, are in the phylum Chordata. This means that they do have a backbone, which invertebrates lack.
Is dragonflies an invertebrate?
It is an invertebrate 
