How is a jellyfish different from a fish?
No, a jellyfish is not a fish. It's invertebrate.An Jellyfish, despite it's name (Jelly-FISH), Is not truly an Jellyfish. It is made of 95% water, and doesn't have the proper organs/ bones to be a fish. (Such as: Example, Jellyfish does not have a brain, gills, bones, and blood.) Jellyfish belong in an group name the invertebrates, which is animals that do not have an backbone.No. One obvious distinction is jellyfish don't have a backbone (vertebrae).