Echinoderms, brittle stars, sea urchins, sand dollars, sea lilies, feather stars, and sea cucumbers, are globally distributed in almost all depths, latitudes and environments in the ocean. Almost all echinoderms are benthic - that is, they live on the sea floor-some can swim, and a few deep-sea sea cucumbers are fully floating. Some attach to floating logs and debris, but echinoderms mostly stay in one place. Sea starts inch along on psuedopods, or tiny bulb-like feet.
Echinoderms have a water vascular system instead of a circulatory system. This water vascular system is used for gas exchange, feeding, and locomotion. Echinoderms have tube feet called podia with suction pads situated at their extremities. This vascular system force water through canals of small muscular tubes to the tube feet located in a groove on the underside of each are called the ambulacral groove. As the tube feet press against a moving object, water is withdrawn from them, resulting in a suction effect. When water returns to the canals, suction is released. The resulting movement is generally very slow.
The larva of a
cnidarian move by
swimming......
<3 yss :)Echinoderm is from the Greek word εχινόδερμα(echinoderma), meaning "five arms".
Class Holothuroidea (sea cucumbers)
Butterflies are echinoderms.
It doesn't move.
They move by how the current is going
To move around
the tube feet of an echinoderm helps the animal, by making it move!. hope this helped.
It helps it move from place to place! :)
A starfish is an echinoderm.
Echinoderm is an invertebrate and therfore it has no backbone
Yes sand dollar is an echinoderm.
No. A spider is an arachnid. A starfish is an example of an echinoderm.
an echinoderm is an organism with no spine
A bird is NOT an echinoderm because they dont live in salt water
Because echinoderm means "spiny skin."
Yes , a starfish is an echinoderm . It belongs to class Asteroidea . It is marine .
The nervous system of the echinoderm lacks a cat and a zebra leg, with the fur from a fish, the echinoderm (ee-chee-no-derm) transacts this with its ability to eat rocks, forming a poylp. This makes the echinoderm smart enough to live.