98% of all animal species don't have backbones. They are classified as invertebrates, which means lacking a vertebral column.
You could call them spineless creatures, but that might sound like an insult!
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Invertebrates.
a vertabrate
Lewis Kenna
A animal without a backbone is called an invertibrate. Mammals, Fish, Reptiles, Amphibians, and Birds are not invertibrates as they have backbones. Arthropds, including Insects and Arachnids, are invertibrates. Hope This Helps!!
The smartest animal without a backbone will have to be an octopus
Do you mean the exoskeleton?
An animal with a backbone is called a vertibrate.
A vertebrate is any animal with a backbone; those without a backbone are called invertebrates. Both vertebrates and invertebrates are members of the Animal Kingdom.
Animals without backbone are invertebrates, because vertebra means backbone.
an animal with a backbone is called a vertebrate
(dovertebrates ) an animal without a penis or internal skeleton is called an dovertebrate an animal with backbone or internal skeleton is called a novertebrate
An animal without a backbone.
A worm
It is an animal without a backbone