"Iam spiny skinned, free living marine animal, I have peculiar water driven tube system and hard calcium carbonate structures which I use as skeleton"who am I? Which class do I belong to?
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The characteristics described in the question belong to the invertebrate, marine animals from Class Echinodermata. Echinos (Greek) means a hedgehog, whereas dermata (Greek) means the skin. Thus, echinodermata means spiny skin.
These animals include a true coelem, which is modified to form a unique circulatory system called the water vascular system.
Some of the prime examples of marine animals from Class Echinodermata include the Sea urchins, sea cucumbers, brittle star and Starfish
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I am spiny skinned, free-living marine animal and I have calcium carbonate structure, I am Starfish.
Explanation:
- The starfish has a tube-like structure in the body where the water is driven through the tube.
- The body is build up with calcium carbonate. The class of the starfish is Asteroidea. The kingdom of the starfish is Animalia, the phylum of the starfish is Echinodermata.
- This is an invertebrate whose body is surrounded by the indistinct central disk.
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