Question

describe group of animal having pseudouelom and give an example​

Answer 1

Some structures with less well-demarcated anatomical features exist outside and around nematode tissues. They have important roles as connective tissues, provide structural support and barriers, have roles in development, and mediate intercellular communication. These structures include the cuticle (see also Cuticle Section and Dauer Cuticle), the pseudocoelom, extracellular matrices, basal laminae, as well as the eggshell and the embryonic sheath of the embryo.

2 Pseudocoelom

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). This body cavity is called a “pseudocoelom” because it is not fully lined by mesodermal cells as in the true “coelomic cavity” of vertebrates. The C. elegans pseudocoelom is bounded by basal laminae (BL) that cover the hypodermis, the nervous tissues, the gonad and the intestine (PeriFIG 2) (Bird and Bird, 1991). The pseudocoelom contains the coelomocytes (see Coelomocyte Section), provides the turgor-hydrostatic pressure for the animal as a whole, functions as a lubricant between tissues, and provides a medium for intercellular signaling and nutrient transport

Answer 2

Ans: The body cavity of phylum Aschelminthes is called pseudocoelom. ... Ans: Ascariasis in humans is caused by roundworms and is scientifically known as Ascaris lumbricoides. It is an endoparasite, living in the intestines of humans, causing intestinal obstruction, abdominal pain, and diarrhoea.


examples.... earthworms