They need skeleton for strength , support ,firmness of body and in most of the cases in some bones ,bone marrow helps in the formation of blood .e.g. human beings.
Bones are rigid so in order to be able to bend the body vertebrates must have joints. Without joints we would not be able to move any of our limbs.
If you don't know about themyou will be that much dumber.
Snakes are vertebrates.
vertebrates
A toucan is a bird, and all birds are vertebrates.
Dolphins are vertebrates.
Ostrich's are vertebrates as they have a spine.
They have a skeleton & are therefore Vertebrates
Pelicans are birds and, like all birds, they are vertebrates. Pelicans have a backbone and an internal skeleton.
There are both vertebrates(things with backbones) & non-vertebrates(animals without backbones).
whyy would u need to know this?? #FREAK
ha ha ha
vertebrates have a backbone invertebrates don't