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.
Skin tags and moles are both skin growths, but skin tags are always benign and moles sometimes precede the development of melanoma. Generally, these growths are not treated unless there is a pressing reason to do so, such as aesthetic concerns or worries that a growth has become cancerous. Perhaps the key visible difference is that skin tags tend to protrude, while moles are flatter, with a raised surface area. In the case of skin tags, the growth consists of a benign tumor, usually close to the patient's natural skin color, developing in the form of a flap.