Parasitic nutrition is a mode where an organism, known as a parasite, lives on or in another living organism, called the host, to derive its nourishment. Dodder (Cuscuta) is a classic example of a parasite as it lacks chlorophyll and cannot make its own food, relying entirely on the host plant for nutrients. Autotrophic nutrition involves making one's own food, saprotrophic involves feeding on dead and decaying matter, and symbiotic involves a mutually beneficial relationship, none of which describe dodder's method.