4 words in this vocabulary list
noun a class of marine animals that includes jellyfish and corals
noun a class of marine invertebrates that includes the corals and sea anemones
noun small tentacle-like structures found on certain marine invertebrates
noun a type of sea slug belonging to the family Aeolidiidae, known for its brightly colored cerata and ability to steal and incorporate the stinging cells of cnidarians into its own tissues for defense