Yes, Ferrets have spines. Haha. I think its funny you ask. They are so silly. The reason they are so flexible and can flatten there self's out, is because they are built to be skinny. So they can fit through small places. Also their spine is built a certain way which lets them be flexible as well. Hope this helped you. :)
Yes, all mammals, including the Black Footed Ferrets, are vertebrates.
The black footed ferret is a mammal and like all mammals is a vertebrate.
No. Ferrets are vertebrates.
A Ferret kit is a baby Ferret.
invertebrate - has exoskeleton
An invertebrate.
No. They will not harm your ferret unless your ferret eats them.
Monique is a ferret
A young ferret or baby ferret is known as a kit.
No. The sperm from the male ferret is required to fertilise the egg / eggs of the female ferret
It is an invertebrate 
no
A bullfrog is not an invertebrate; it has a spine.
The octopus is an invertebrate... It has no skeleton.
seriously? wow....... did you pass 4th grade? invertebrate