Question: do nematodes have a pseudocoelom?
Answer: The pseudocoelom is a fluid-filled body cavity lying inside the external body wall of the nematode that bathes the internal organs, including the alimentary system and the reproductive system (PeriFIG 1). ... PeriFIG 1: Pseudocoelom (body cavity). A. Graphic representation of the body cavity and pseudocoelomic fluid.