CLINICAL MEDICINE

Detailed explanation-1: -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. Protozoa. Entamoeba histolytica is a protozoan.

Detailed explanation-2: -A parasite is an organism that lives in or on a host. It derives food and nutrients from the host. Parasites harm the host.

Detailed explanation-3: -Parasites like leeches live on or feed on other organisms. They suck blood from the organism they feed on and as a result causing harm to the host organism. Human beings and various types of animals can act as possible hosts for parasites.

Detailed explanation-4: -Parasitism is the interaction between two species where only one benefits from the other organism and the other is harmed in return. The one that benefits from the other organism is called a parasite, while the organism that is being harmed is called a host.

Detailed explanation-5: -The parasite is the organism that benefits from the other. The host is the organism that is harmed by the other. Parasites are defined as organisms that live in or on another organism (host) and benefit at the host’s expense.