Phylum Porifera sponges have radial symmetry.
Almost all Poriferans are asymmetrical.
Individuals in the phylum porifera are asymmetrical.
Symmetry in animals of the phylum is typically categorized as radial or bilateral. Radial symmetry is when an organism can be divided into equal halves in multiple planes around a central axis, like a sea anemone. Bilateral symmetry is when an organism can be divided into two equal halves along just one plane, like a human.
Porifera is the phylum with no body symmetry: it is asymmetrical.
The phylum Porifera (sponges) is the only animal phylum that lacks true tissues and symmetry. Sponges are simple multicellular organisms with specialized cells, but they do not have tissues that are organized into distinct structures like other animals. Additionally, sponges exhibit asymmetry rather than bilateral or radial symmetry found in other phyla.
Actually all Cnidarians have radial symmetry (able to be divided into identical pie-shaped segments) and have stinging cells. The invertebrate with no symmetry is probably a sponge, phylum Porifera.
most porifera do not have any symmetry
Porifera
I assume you mean in animals? The best example is a sponge, in Phylum Porifera.
phylum porifera are sponges.
phylum porifera
Porifera and Cnidaria
The Phylum Porifera consists of the sponges. To make it into the porifera phylum an animal must have no true tissue. Some contain spicules, a skeletal element, and all contain choanocysts, a type of cell, which move water through the porous bodies of poriferas. Porifera also have totipotent cells, which have the cabalitity of changing into whatever type of cell is needed by the organism.