Question

Which one of the following belongs to the phylum Coelenterata?

• A. Sea mouse
• B. Sea anemone
• C. Sea urchin
• D. Sea cucumber

Answer 1

The correct option is B Sea anemone

They are aquatic, mostly marine, sessile or free-swimming, radially symmetrical animals.
Sea anemone (Adamsia) – belongs to the phylum Coelenterata
Sea mouse (Aphrodita) belongs to the phylum Annelida (They may be aquatic or terrestrial; free-living, and sometimes
parasitic.
Sea urchin (Echinus) – belongs to the phylum Echinodermata
Sea cucumber (Ocnus) – belongs to the phylum Echinodermata
(These animals have an endoskeleton of calcareous ossicles)