They are radially symmetrical, there is no cephalization ( no heads ) and they are, like you deuterostomes. ( indeterminate cleavage and a mouth that does not arise from the blasophore ).
Also, they are all marine animals and they have spiny skin.
Invertebrate animals with spikes and spines all over their bodies.
They have a spiny back and they eat particles in the water plus they have most color and they don't walk with two legs they have one.(:
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Yes, all echinoderms have radial symmetry.
they are in the shape of a star
they use sucker like part to catch prey
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their body plan
Echinoderm literally means "spiny skin." Echinoderms are invertebrates that are generally found in the ocean. They have exoskeletons and spines or needle-like protrusions all over them. Common echinoderms are: Starfish, sea urchins and sand dollars.
yes
Echinoderms live only in the sea.
No not all Echinoderms have backbones like the starfish
Yes Eventually echinoderms do live in water.
Echinoderms are invertebrates with an internal skeleton and a system of fluid-filled tubes called a water vascular system. There are four major groups of echinoderms: sea stars, brittle stars, sea urchins, and sea cucumbers.
no, a lobster is a crustacean, not an echinoderm