the tube feet of an echinoderm helps the animal, by making it move!. hope this helped.
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.
Yes echinoderms have that internal hydrological system that lets them run their tube feet.
It helps it move from place to place! :)
An ambulacrum is a row of pores of an echinoderm for the protrusion of appendages such as tube feet.
for attachment
To move around
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
An ambulacral is another word for an ambulacrum, a row of pores of an echinoderm for the protrusion of appendages such as tube feet.
No, vertebrates are animals that have spinal columns. You are describing an echinoderm, which is an invertebrate.
Gas exchange in an echinoderm takes place through tube feet and papulae, which are specialized structures that allow exchange of oxygen and carbon dioxide with the surrounding water. Water enters the echinoderm's body through the madreporite and circulates to the tube feet and papulae for gas exchange.
Locomotion. In the sea star, water enters the system through a sieve plate. Eventually it is pumped into many tube feet, expanding them. When the foot touches a surface, the center withdraws, producing suction that causes the foot to adhere to the surface. By alternating the expansion and contraction of it's many tube feet, a sea star moves slowly along.