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The three major classes of cnidarians are hydrozoans, jellyfish, and sea anemones and corals.
Usually not. Major classes are like Physics, Language Arts, Math etc.
the three major groups are crustaceans spiders and inscets
three.. :) ..
Radar, Computers, Rockets
Computers, increased pace of living, and replacement of human services are three major effects of technology on everyday living.
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.
Jellyfish and Coral and sea anemones