No. A good example is humans; Humans certainly do have a backbone, but no exoskeleton (well, I don't, anyway).
No, they do not have a backbone, they have an exoskeleton.
A vertebrate is an animal with a backbone (spine) and an invertebrate has no backbone, usually it has an exoskeleton.
No, cockroaches, like all insects, are invertebrates and have an exoskeleton.
well they have a backbone and no exoskeleton
No bones at all, backbone or otherwise. They have an exoskeleton (shell)
No
No. They are invertebrates (no-backbone creatures) and they have an exoskeleton, which is an outer shell that is rigid enough to hold all the inner parts in their proper places. They have no bones.
Spiders do not have a backbone because they belong to a group of animals called arachnids, which have an exoskeleton instead of an internal skeleton. This exoskeleton provides support and protection for their bodies. Spiders are able to move and function effectively without a backbone due to this exoskeleton.
They don't have a backbone. They have an exoskeleton.
No, it has an exoskeleton.
A tiger shark has a backbone
Molluscs are animals which have no backbone (invertebrates) and no exoskeleton. These include snails (they have an outer shell but it isn't an exoskeleton) slugs (no shell, no exoskeleton, no bones) octopuses (they have no bones. They aren't fish because all fish have bones.) Sea snails and periwinkles are just other types of snail.