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That depends, obviously, on the species of Sea Urchin. All belong to the Phylum Echinodermata (along with sea stars and sea cucumbers) and to the Class Echinoidea. They are then divided into different orders, genera and species. That depends, obviously, on the species of Sea Urchin. All belong to the Phylum Echinodermata (along with sea stars and sea cucumbers) and to the Class Echinoidea. They are then divided into different orders, genera and species.

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15y ago
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15y ago

A sea urchin does not have a phylum but actually belongs to a group of sea creatures called phylum Echinodermata. This group includes sea stars, sea cucumbers, starfish and sea urchins

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15y ago

Answer So far the closest animal to the sea urchin is the starfish (seastar).

Sea cucumbers and sand dollars are also closely related to the sea urchin.

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11y ago
  1. a sea urchin is a invertebrate
  2. because it does not have a backbone
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5mo ago

Sea urchins belong to the phylum Echinodermata.

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15y ago

They look like spike bombs

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Q: What is the sea urchins phylum?
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Related questions

What phylum do sea urchins belong?

Sea urchins belong to the phylum Echinodermata.


What else is like Starfishes sea urchins and sea cucumbers?

Seastars, sea urchins, and sea cucumbers are all members of the phylum Echinodermata. Other members of this phylum include: sand dollars, brittle stars, basket stars, feather stars, sea lilies, and heart urchins.


Is sea urchins classified in the same phylum as humans?

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Are sponges in the group Echinodermata?

Sponges are in the group(phylum) Porifera. The phylum echinodermata are the starfish, urchins sea cucumbers, and sea lilies..


What phylum contains sea stars?

Includes: Sea Stars, Sea Lillies, Sea Urchins, Sea Cucumbers, Brittle Stars


What phylum does bipinnaria larva belong to?

Bipinnaria larva belongs to the phylum Echinodermata. This phylum includes marine animals such as sea stars, sea urchins, and sand dollars.


Are Sea Urchins mollusks?

No - sea urchins are part of the echinoderm phylum, with sand dollars, starfish and sea cucumbers.


What is Echinoderma?

Echinoderma are a phylum of "spiky skin" sea life, such as starfish, sea urchins, and sand dollars.


Are startfish arthropod?

No, starfish, sea urchins, sand dollars, and their ilk are echinoderms (phylum echinodermata), a different phylum from arthropoda.


What class do sea stars belong to?

Sea stars also known as starfish, are in the class Asteroidea. They belong to the phylum Echinodermata. Also in this phylum are sea urchins, sand dollars and sea cucumbers.


Are lobsters Ecnoderms?

Echinoderms. No, echinoderms are starfish, sea urchins, and sea cumcumbers. Lobsters are part of the phylum Arthropoda.


What types of organisms are in the phylum echinodermata?

Organisms in the phylum Echinodermata include sea stars, sea urchins, sand dollars, and sea cucumbers. These marine animals are characterized by their radial symmetry, spiny skin, and a water vascular system used for movement and feeding.