it helps in:
>movement; to coordinate locomotion, to grip on substrate to withstand pressure, and act as sense organs that response to variation within the environment.
>feeding; it helps trap its prey, and with the help of the cilia it carries food to its mouth.
Brittle stars, sea urchins, sand dollars, and sea cucumbers are four types of functions echinoderms..
No, it is an echinoderm.
On the ventral side of an echinoderm (say, a sea star, for example) there are hundreds of tiny feet arranged into rows on each appendage. These are called tube feet. By varying the internal water pressure, the echinoderm can extend and contract its tube feet for locomotion, food collection, and respiration
The Sea Star.
sea star
Brittle star is an echinoderm
Brittle star
A Brittle star is not a myriapod. A Brittle star is an echinoderm. An example of a myriapod would be a centipede.
Sea star (starfish), sea cucumber
Echinoderm. From the phylum echinoderma.
Star fish is not a fish because it is an ''echinoderm''. It is an ''echinoderm'' because its body is divided into five parts and it has a spiny outer covering. It only is called a star''fish'' because it lives in water.
Echinoderms are a group of marine invertebrate animals .They possess spines on skin , tube feet , and water vascular system . Star fish is well known example .
An echinoderm is an invertebrate marine animal such as star fishes and sea urchins.