It is as primitive as a cave man.
primitive fish are ones that have more skeleton weres advanced types tend to be more of muscles
Along with rays, they make up the family Chodrichthyes, fish with skeletons of cartilage. They are among the most primitive of fish.
A: jawless fish
Agnatha is a superclass of fish that are characterised by their lack of a jaw as opposed to the presence of a jaw found in most modern fish. The surviving two classes are hagfish and lampreys.
A primitive animal is a type of organism that is considered to be simple in structure and function compared to more complex organisms. These animals often exhibit features that are similar to ancestral forms, reflecting an earlier stage of evolution. Examples of primitive animals include sponges and jellyfish.
If you are doing the cross word, the answer is Sturgeon - one of the oldest bony fish linking to fossils of primitive type. ;-)
No a hydra is not a fish. A fish is a vertebrate. A hydra is much more primitive.
No a hydra is not a fish. A fish is a vertebrate. A hydra is much more primitive.
All primitive soft-bodied animals that live in the sea. Most fish, most arthropods and quite a few insects.
Most fish have only two heart chambers.Amphibians and some types of primitive fish have four heart chambers, and the fourth one of these is known as the conus arteriosus.
most primitive