What Is A Parasite Simple Definition. Trichomoniasis is a sexually transmitted infection caused by a parasite. A relationship between two organisms in which one organism the parasite benefits and the other the host is harmed.
A host is an organism that supports a parasite. Tapeworms fleas and barnacles. An example of a parasite is a person you know who is continually borrowing money and asking things of you without giving anything back.
An organism living in on or with another organism in order to obtain nutrients grow or multiply often in a state that directly or indirectly harms the host see host entry 3 sense 2a Now the death of its host is certainly a setback to any parasite.
To some like the tapeworm it is fatal. Tapeworms fleas and barnacles. A relationship between two organisms in which one organism the parasite benefits and the other the host is harmed. But smarter ones like the louse simply go off in search of a new host.
