You can also kick its butt so you can have a laugh and make milk. Get it?
No, echinoderms are a type of marine animal. Animal cells do not have cell walls, only cell membranes.
Sponges, Cnidarians, Mollusks, and Echinoderms are not Arthropods.
Echinoderms
Echinoderms
Echinoderms are not like any one animal. Echinoderms are invertebrates (no backbone), and are all animals with spiny skin (echin-spine, derm-skin). Some examples are starfish, sea urchins, and sea cucumbers.
The sea cucumber belongs to the same animal group as the starfish, the echinoderms.
Sea Stars, also know as starfish, belong to the animal group echinoderms.
Cnidarians and echinoderms
Cnidarians are true radially symmetrical animals. They include jellyfish. Echinoderms (like starfish) also display radial symmetry. It is important to note that the larvae of echinoderms are bilaterally symmetrical and that Echinoderms evolved from a bilaterally symmetrical group.
Starfish (Sea stars) are echinoderms, a type of spiny animal.
Deer
well in vertebrate which is an animal with a backbone the animal groups are mammals fish birds reptiles amphibians for the invertebrates which is an animal without a backbone they are protozoa annelids echinoderms mullosks arthropods crustaceans arachnids