What organ systems are present in Nematoda?

Answer 1

1. They possess a one way digestive system. Mouth, intestine and anus.
2. They contain separate sexes. The female being the larger of the pair. Females are capable of producing 100 of thousands of eggs per day. The male usually dies after copulation.
3. They have a circular brain and several longitudinal nerve cords.
4. The nitrogenous waste is collected by two lateral canals and emptied from the body through an excretory pore located in the head area.
5. They contain longitudinal muscles only. This makes it difficult for the worm to move in a coherent manner.