The element is a clause if there is a subject and a verb, and it is a phrase if both of these parts of speech are not present. What comes after the introductory element is always an independent clause, or complete sentence, on its own, and the introductory element gives meaning to it.
A parasite is an organism that lives on or in a host organism and gets its food from or at the expense of its host. There are three main classes of parasites that can cause disease in humans: protozoa, helminths, and ectoparasites.
Parasitic infection can range from fleas, to bed bugs, to scabies, and worms. Parasites generally live on a host causing the host a number of symptoms such as itching, allergic reactions, and discomfort.Treatment for parasites include creams and ointments used to eliminate them and treat the symptoms.arasites generally live on a host causing the host a number of symptoms such as itching, allergic reactions, and discomfort. Treatment for parasites include creams and ointments used to eliminate them and treat the symptoms.