1 Pseudocoelomate animals have a pseudocoelom (literally âfalse cavityâ), which is a fully functional body cavity. 2  Tissue derived from mesoderm only partly lines the fluid filled body cavity of these animals.n some protostomes, the embryonic blastocoele persists as a body cavity. These protostomes have a fluid filled main body cavity unlined or partially lined with tissue derived from mesoderm.
POLIO is a highly contagious, life-threatening disease with no cure, and while there are vaccinations to prevent it available, ahead of World Polio Day, the World Health Organisation is now advising countries prepare to give out lower doses to make stocks last. 07:50, Mon, Oct 24, 2016 | UPDATED: 09:56, Mon, Oct 24, 2016. GETTY.
Pancreatitis and gastroenteritis can be life threatening. In severe cases, the inflammation can trigger and system wide inflammatory response that can send your animals body into shock. In addition, screening for other underlying causes such as diabetes or cancers is important to avoid other complications in the future.