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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.
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Do Gila Monsters have backbones?
As Gila monster is a lizard, it has backbones.
Which is the group includes organisms all of which are absorptive in their nutrition?
protists
How do animal -like protists differ from plant-like protists?
Animal-like protists are autotrophic, while plant-like protists are heterotrophic.
Are zooplankton protists?
yes there a classification of protists
What are the animal like protists know as?
Protists are informally called protozoa.
There are more animals that don't have backbones than there are that do have backbones?
No there is more with backbones
Do pigs have backbones?
Pigs do have backbones.
Do toucan have backbones?
it has 2 backbones
What do all invertebrates have?
No backbones
Different types of snakes that have no backbones?
All snakes have backbones.
Which fish have backbones?
all fishes have backbones
What are the backbones part of?
The backbones are part of the skeleton.
Do hamerhead sharks have backbones?
no they don't have backbones
Do cicada have backbones?
No cicadas do not have backbones, they are invertebrates. Any Animal and insects that is an invertebrates do not have backbones.
Does a millipede have a backbone?
no myriapods don't have backbones
Do hares have backbones?
Yes, they do.
Do all dinosaurs have backbones?
All dinosaurs had backbones.
