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 mole and a wart is that moles are not contagious, but warts are. A mole, or nevus, is a collection of skin pigment cells. When they are small, they look like small brown dots. When the collection is larger, and slightly deeper, it can cause a raised skin colored bump over it.
Warts are caused by human papillomavirus, or HPV, whereas genital herpes is caused by herpes simplex virus, or HSV. Warts are not a form of herpes, and HPV will not cause genital herpes. Conversely, genital herpes does not cause cervical cancer or anal cancer. There are more than 100 types of HPV. Different types are associated with infections in different areas of the body and different forms of persistent infection.