Single celled organisms (unicellular organisms) include all archaebacteria and bacteria and some fungi (like yeasts) and some protists (like single-celled algae and protozoa). None of these organisms have a backbone, where 'backbone' is synonymous with 'spine' or 'vertebral column'. The concept of a backbone or spine or vertebral column is delimited to the realm of vertebrates (mammals, birds, reptiles, amphibians and fish). No unicellular organism can possibly have a backbone.
No, amoebas do not have backbones. They are single-celled organisms that lack complex structures like skeletons or backbones.
As Gila monster is a lizard, it has backbones.
Animal-like protists are autotrophic, while plant-like protists are heterotrophic.
There are many ways in which protists are more advanced than bacteria. Protists possess a nucleus. Protists can also be unicellular or multicellular while bacteria is only unicellular.
Multicellular protists are grouped with unicellular protists because multicellular protists are very similar to unicellular protists. A protist is any organism that is not a plant, an animal, a fungus, or a prokaryote.
No there is more with backbones
No backbones
Pigs do have backbones.
it has 2 backbones
All snakes have backbones.
all fishes have backbones
The backbones are part of the skeleton.
no they don't have backbones
no myriapods don't have backbones
Yes, they do.
All dinosaurs had backbones.
yes they do have backbones so they are a vertebrate