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Echinoderms

What is an echinoderm?


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Answered 2010-03-19 23:50:35

An echinoderm is a sea animal that has a hard spiny shell, or exoskeleton. Echinoderms display radial symmetry, having 5 similar body extensions from a central point.

The seven classes of echinoderms are brittle stars, basket stars, sea urchins, sand dollars, sea lilies, feather stars, and sea cucumbers.

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Related Questions

Is a lobster a echinoderm?

no, a lobster is a crustacean, not an echinoderm


What type of symmetry does an echinoderm have?

An echinoderm has a radial symmetry.



Does an echinoderm have an exoskeleton?

The Echinoderm has an exoskeleton made of Calcium Carbonate


What are the characteristics of echinoderm?

echinoderm or echinodermata ...... it is a spiny-skined animals.


Does a echinoderm have a back bone?

Echinoderm is an invertebrate and therfore it has no backbone


Is a sand dollar an echinoderm?

Yes sand dollar is an echinoderm.


Is the sand dollar an echinoderm?

Yes, a sand dollar is an echinoderm.


Is a spider an echinoderm?

No. A spider is an arachnid. A starfish is an example of an echinoderm.


What is the difference between human spine and a echinoderm?

an echinoderm is an organism with no spine


What does echinoderm means in latin?

Echinoderm means spiny skin in Latin.


What determines how fast or how big an echinoderm will get?

The health of the echinoderm influences growth speed.


What is the largest echinoderm?

The largest species of echinoderm in terms of bulk is the sea star


Is a bird an echinoderm?

A bird is NOT an echinoderm because they dont live in salt water


Why is echinoderm a good name for starfish?

Because echinoderm means "spiny skin."


The nervous system of an echinoderm lacks what?

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.


Is a fish an echinoderm?

Only certain types of fish like sea urchins and sea cumbers are echinoderm


Do echinoderm have backbones?

NO they are invertebrates


What is the adaptation of a Echinoderm?

One Adaptation of an EchinodermEchinoderm-ἐχινοδέρματα. One adaptation of the echinoderm is that they have spikes and toxins to keep away predators. Echinoderms include: starfish, sea urchins, sand dollars, sea cucumber, feather lilies, and many others. in fact about 5000 known-Kate Ash


What does echinoderm mean in Greek?

Echinoderm means "Spiny-Skinned" in Greek. For more information, look at "What does echinoderms mean in greek?"


How do the tube feet of an echinoderm help the animal?

the tube feet of an echinoderm helps the animal, by making it move!. hope this helped.


Is an echinoderm a mammal that lays eggs?

No. The echinoderm is a marine invertebrate, not a mammal.The echidna is a mammal that lays eggs, like the platypus.


Does echinoderm mean headge hog skin?

No. Echinoderm are things like starfish and sea urchins, invertebrates with spiny outsides .


Is a sea urchin a mollusk?

No, it is an echinoderm.


Is a Sea urchin an Invertibrate?

no it is an echinoderm


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