Jellyfish and Coral
and sea anemones
The three major classes of cnidarians are hydrozoans, jellyfish, and sea anemones and corals.
Hydra , Obelia , jelly fish , coral ,and sea anemone .
squid, jellyfish, octopus!
Other than what?
Jellyfish, corals, sea anemones, sea pens
shut it
The three major classes of cnidarians are hydrozoans, jellyfish, and sea anemones and corals.
Three groups of cnidarians are 1. nematocyst 2. cnidocytes 3. gastrozooids
the three major groups are crustaceans spiders and inscets
Cnidarians and echinoderms
The major classes of nouns are common nouns (e.g. dog, city), proper nouns (e.g. Paris, McDonald's), abstract nouns (e.g. love, happiness), concrete nouns (e.g. table, tree), countable nouns (e.g. book, cat), and uncountable nouns (e.g. water, air).
three.. :) ..
In the phylum cnideria there are three classes. They are hydrozoa, scyphozoa, and anthozoa. In the class hydrozoa, their habitats are fresh and marine water. In scyphozoa, their habitats are marine only. In anthozoa, their habitats are marine only.
the major classes of materials
Not clear on which 3 classes are the "major ones", but Polyplacophorans, Gastropods, and Bivalves have an open circulatory system while Cephalopods have a closed circulatory system.
Alkanes_CnH2n+2 Alkenes_CnH2n Alkynes_CnH2n-2
The three social classes in China under the Zhou dynasty are King, Nobles, and Peasants.
Six primary classes, three intermediate classes (Junior High) Three Senior classes.