Is a herring a invertebrate or a vertebrate?

Answer 1

As it stands, the answer is no, but, the hagfish status is still a little up for debate because it seems that they MAY have once had a vertebrate but then lost it through further specialization. They are the only animal to have a skull without a vertebrate.

Also, the hagfish's "skeleton" is not bone, but a softer, but still stiff, substance such as cartilage but not cartilage.

Answer 2

No, hagfish are not invertebrates, they are chordates.

Chordates fall between invertebrates and vertebrates on the evolutionary ladder and, as such, they are the predecessors of vertebrates. Instead of having a backbone running along their bodies they have a stiffened rod of gristle. This is an early form of spine and is what enables hagfish to be so flexible .

Answer 3

A herring is a vertebrate because it is a bird and all birds are vertebrates

Answer 4

Yes, that is correct.

Answer 5

Yes.