Answer:
Known as a great deceiver, It is evil's incarnation, Once used for veneration, The root of all procreation. All you can do is shiver, When it begins to slither.
I'm a giant lizard that can grow up to 10 feet long. I have a forked tongue and live on an island. What am I?
I am a rodent that people sometimes keep as pets. I love cheese and have a long tail. What am I?
When they are caught, they are thrown away. When they escape, you itch all day.
Microparasite expert at sucking the blood of mammals and birds
You use it between your head and your toes, the more it works the thinner it grows.