Metameric segmentation is a characteristic of
Annelida and Arthropoda.
Platyhelminthes and Annelida.
Mollusca and Chordata.
Aschelminthes and Arthropoda.
Annelids, arthropods and chordates have segmented body.
Molluscs, echinoderms, round worms (Aschelminthes) are unsegmented.
Tape worms (Platyhelminthes) exhibit pseudometamerism.