Parasite:1. The organism, which depends upon other organism for its nourishment and growth, is known as parasite.2. It has intracellular digestion.3. It causes harm to the organism.Several human diseases are caused by parasites.For example, Malaria is caused by a parasite called Plasmodium. Certain parasitic protozoans and helminths also cause significant intestinal infections in humans.Saprophyte:1. The organism, which grows on dead and decaying material for its growth, is known as saprophyte.2. It shows extracellular digestion.3. It does not depend on living host.Most fungal species are saprophytes.