Quality Testing for Fabric. If you've bought fabric upholstery before, you know that the fabric is often the first thing to show signs of wear and age. Most likely, the quality and longevity of the fabric is just as important to you as the construction of the furniture itself.
By Dr Ananya Mandal, MD. Helminths are parasitic worms that feed on a living host to gain nourishment and protection, while causing poor nutrient absorption, weakness and disease in the host.These worms and larvae live in the small bowel and are referred to as intestinal parasites.ome of the features of the different groups of the helminths include: 1  The trematodes or flatworms are flat, leaf-shaped and unsegmented. 2  Nematodes are cylindrical and have lips, teeth and dentary plates. 3  The cestodes or tapeworm is segmented and hermaphroditic.
Like protozoa, helminths can be either free-living or parasitic in nature. In their adult form, helminths cannot multiply in humans. There are three main groups of helminths (derived from the Greek word for worms) that are human parasites:1  Flatworms (platyhelminths) â these include the trematodes (flukes) and cestodes (tapeworms). 2  Thorny-headed worms (acanthocephalins) â the adult forms of these worms reside in the gastrointestinal tract.here are three main groups of helminths (derived from the Greek word for worms) that are human parasites: 1  Flatworms (platyhelminths) â these include the trematodes (flukes) and cestodes (tapeworms). 2  Thorny-headed worms (acanthocephalins) â the adult forms of these worms reside in the gastrointestinal tract.