Cephalization
A hydra does not have cephalization.
The cephalization of a mollusca could possibly describe the arrangement of neurons in the front end of the animal.
Cephalization means formation of a head. Cnidarians have no head, so no.
Animals with cephalization respond more quickly and in more complex ways.
Yes. They have extensive cephalization. They have a brain and eyes.
they do not
something
Annelid Worms use Coelomic Fluid
nervis system
A sponge.
annelid- earthworm