Answer: Tapeworms
Explanation: The tapeworms are the worm that is present in the small intestine of the human beings that absorbs the nutrients from it.
They act as parasite residing in the human body. An adult tapeworm consists of the head, neck and chain of segments. During an infection the tapeworm adheres the walls of intestine and grows their.
An adult tapeworm can grow upto 50 feet in length and survive inside the human body upto 30 years.