<prompt> Operculated eggs are seen in -NematodesCestodesTremalodesProtozoa  <response>: Ans. is c i.e., Trematodes o Operculated eggs has a little cap like structure operculum at the end. The operculum pops open when the next stage is ready to emerge.o The trematodes flukes lay operculated eggs. An exception is schistosome egg, which are not operculated. 