there are 63
1
No, there are many more animals without backbones than there are those that have backbones.
No there is more with backbones
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.