No. Mussels are molluscs and molluscs are invertebrate animals. Invertebrates do not have backbones.
No.
No there is more with backbones
it has 2 backbones
No backbones
Pigs do have backbones.
All snakes have backbones.
The backbones are part of the skeleton.
all fishes have backbones
no they don't have backbones
No cicadas do not have backbones, they are invertebrates. Any Animal and insects that is an invertebrates do not have backbones.
no myriapods don't have backbones
Yes, they do.
They live in Freshwater. (Freshwater Mussels.) They can also live in Saltwater. (Saltwater Mussels.) Mussels are kind of like a clam, not to be mixed up with muscles.