Only vertebrates have a backbone.
Bones and cartilage are found in most all vertebrates, with the exception of sharks and rays, which only have cartilage.
Vertebrates do not have exoskeletons.
There are 29 phyla in the kingdom Animalia. Only 3 percent of organisms in this kingdom are vertebrates. they are found in one phylum, called Chordata.
Not only can they be, all reptiles are vertebrates.
Not all vertebrates have tails.
Five organs that are found in most vertebrates are the brain, stomach, heart, eyes and skin. Vertebrates are animals that have a spine.
It's not answerable by anyone at this time because many vertebrates and invertebrates have to be found.
No, not all animals have spinal cords. Only vertebrates have spinal cords. (However, their are plenty of spineless people and they are vertebrates)
Vertebrates are animals within the phylum Chordata, that have a backbones (also called vertebrae).
Most elected politicians.
external skeleton
90% of animals are invertebrates and only 10% are vertebrates they have backbones