Cnidarians have a radial symmetry.
Sponges are invertebrate animals that usually have no body symmetry and never have tissues or organs. Cnidarians use stinging cells to capture food and defend themselves. Flatworms are flat and as soft as jelly. Unlike cnidarians or flatworms, roundworms have a digestive system that is like a tube, open at both ends. Earthworms and other segmented worms have bodies made up of many linked sections called segments.
No, cnidarians are not protostomes or deuterostomes. They fall under (the unranked taxonomic level) Radiata, while both superphylum Deuterostomia and Protostomia are under the (unranked taxonomic level) Bilateria. Features of Bilateria include bilateral symmetry (at some point) and three distinctive germ layers, while Radiata only has two.
Cnidarians and Sponges are invertebrates
No. Cnidarians don't even have a circulatory system.
Crustaceans, like all arthropods, have bilateral symmetry. This means they have symmetry across one plane (known as the sagittal plane, and directly down the centre of their body), which means one side of their body approximately mirrors the other side.
radial symmetry
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.
Radial symmetry is the main one that distinguishes cnidarians from porifera.
Cnidarians and echinoderms
Yes. They are are the first phylum to display cell organization into tissues and the second to desplay radial symmetry.
Radial symmetry is like spokes on a wheel. Bilateral symmetry is like a human body, cut in half (2).
Most cnidarians have tentacles with stinging cells surrounding their mouth. The mouth is the only body opening. All cnidarianshave radial symmetry.