A tiger shark has a backbone
A tiger shark has an internal skeleton, so is endoskeleton.
well they have a backbone and no exoskeleton
No
No, cockroaches, like all insects, are invertebrates and have an exoskeleton.
Katydids are insects and have an exoskeleton. They do not have a backbone.
They don't have a backbone. They have an exoskeleton.
No, it has an exoskeleton.
No. A good example is humans; Humans certainly do have a backbone, but no exoskeleton (well, I don't, anyway).
Tiger sharks are not invertebrates by most definitions of the word. It is true that they do not have a backbone, but instead their entire skeleton is composed of cartilage. However, most cartilaginous fish are referred to as vertebrates.
They have an exoskeleton, which is their "backbone"
Invertebraes: jellyfish,sponges,squid
Yes. A tiger is a mammal and has a backbone.