Echinoderms have a unique body plan characterized by a water vascular system and typically possess a pentaradial symmetry. They generally have one main opening, the mouth, which is located on the underside of their bodies, while the anus is often located on the top side, making it a second opening. Therefore, echinoderms can be said to have two openings: the mouth and the anus.
The symmetry of the larvae of echinodermata is bilateral.
The phylum Echinodermata which, contains about 6,000 species.
The brittle star belongs to the phylum Echinodermata.
Echinodermata
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Phylum Echinodermata
The scientific name for Echinoderms is Echinodermata.
Echinodermata comes from the term echino which means "spiny" and derm derives from the root "skin" so therefore, the phylum echinodermata means "spiny skin"
Echinoderms belong to the phylum Echinodermata.
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Echinodermata