hydrostatic skeleton

Do Echinoderms Have A Hydrostatic Skeleton?

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Do Echinoderms Have A Hydrostatic Skeleton? The bodies of all members work on a unique hydrostatic principle. The hydrostatic skeleton is closed fluid-filled system that terminates as a series of blind tubes called tube-feet. The water from this system circulates separately from that in the body cavity. … What type of skeleton does echinoderms have?

Do Cnidarians Have A Skeleton?

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Do Cnidarians Have A Skeleton? Do cnidarians have a skeleton? Cnidarians have a hydrostatic skeleton. The contractile fibers act against the fluid-filled gastrovascular cavity. The movements are like a balloon; the animal can be short and thick or long and thin. Cnidarians have a saclike gut and extracellular digestion. Do Cnidaria have an endoskeleton or