Yes, they're not invertibrates!
Seagulls are vertebrates. They have a backbone.
No there is more with backbones
No, Seagulls are white.
No backbones
Pigs do have backbones.
it has 2 backbones
All snakes have backbones.
all fishes have backbones
no they don't have backbones
The backbones are part of the skeleton.
no myriapods don't have backbones
Yes, they do.