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the tube feet of an echinoderm helps the animal, by making it move!. hope this helped.
A starfish is an echinoderm.
Echinoderms, such as seastars and sea urchins, use their tube feet to move. Tube feet have suction discs which allows the echinoderm to crawl or stick to various surfaces.
It helps it move from place to place! :)
Yes echinoderms have that internal hydrological system that lets them run their tube feet.
An ambulacrum is a row of pores of an echinoderm for the protrusion of appendages such as tube feet.
they float in the water!!
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
These tube feet have suction disks that enable the animals to crawl or attach themselves to objects. Think of a starfish "clinging" to the walls of the inside of a fish tank
Some ecchinoderms are a few centimeters long, but some can grow up to six feet.
An ambulacral is another word for an ambulacrum, a row of pores of an echinoderm for the protrusion of appendages such as tube feet.