radial symmetry
Cnidarians typically exhibit radial symmetry, meaning they are shaped like a wheel spoke with multiple identical parts radiating out from a central point. This symmetry allows them to respond to stimuli from all directions equally and efficiently capture prey in their aquatic environment.
They're named from there body symmetry
like spokes on a wheel
Some have asymmetry, but most have radial symmetry.
Cnidarians
Radial symmetry
Cubazoa are a group of cnidarians. Cnidarians are animals that have radial symmetry and are usually venomous or poisonous.
Cnidarians exhibit radial symmetry, which means their body parts radiate out from a central point. This symmetry allows cnidarians to capture prey efficiently from all directions.
Radial symmetry is the main one that distinguishes cnidarians from porifera.
Cnidarians and echinoderms
Cnidarians belong to the Kingdom Animalia. They are characterized by their radial symmetry, tentacles with stinging cells called cnidocytes, and a simple nerve net.
Mollusks are defined as Bivalves. They are called Bivalves because they have two shells. Cnidarians such as Jelly Fish do not have shells which define a bivalve (mollusks).