Class Trematoda: Infect the internal organs of hosts. Parasitic Can be endoparasites (live in the host) or ectoparasites (attach to external surfaces of the host. Size: ~ 1 cm to 10 cm Covered in an unciliated cuticle. Usually require 2 hosts to complete it's life cycle.
The Difference Between A Wart And A Mole. Although warts and moles may appear to be the same they are not related conditions. They are thought to be because the often look alike. Warts are defined as small areas of a long. standing viral infection. Moles are described as areas of the skin that are heavily pigmented. with melanin,the substance that is responsible for general skin coloring. Warts will vary in their appearance. Warts are not dangerous but can most definitely become a nuisance.
Flat warts are tumor-like masses on skin, slightly elevated above its surface. They are called flat because they look like a flat growth resembling a small nettles sting or a light mole. Flat warts are also called juvenile warts because they occur in childhood and adolescence, mostly in adolescence. And over time, during puberty, they disappear on their own and occur no more. Flat warts are usually located on the face, on the neck, on legs, on hands and on fingers of a young man or woman.