Question

Out of the three worm phylum which is advanced in terms of evolution and why

Answer 1

Out of the three worm phyla platyhelminthes(flat worms)

Aschelminthes(round worms) and

Annelids(segmented worms)

Annelida are the most advanced because they have true coelome also called schizocoelome ,metamerism, which is not seen in other two