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.
Warts are small growths caused by a viral infection of the skin or mucous membrane. This virus infects the epidermis (surface) layer, and are contagious, easily passing from person to person. Warts can also pass from one body part to another. Common warts are hand warts, foot warts, and flat warts. Hand warts frown around the fingers (specifcally the nails) and on the backs of hands. They appears mostly in areas where the skin may be 'broken'.