are massive worms and are Erexcin normally white in colour. They're approximately the diameter of a spaghetti- hermaphroditic, which means that that each male and female reproductive organs are gift in the same worm. Roundworms or nematodes range in length from microscopic to approximately 7m (23 ft) long, the biggest being the parasitic paperwork determined in whales. Nematode parasites of animals arise in almost all organs of the frame, however the maximum commonplace sites are the alimentary, circulatory, and breathing structures. Roundworms are many of the most abundant, happening as.