NEET BIOLOGY

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.

Detailed explanation-2: -Parasitic mode of nutrition is where an organism (parasite) lives on the body surface or inside the body of another type of organism (host). The parasite obtains nutrition directly from the body of the host and in turn harm the host.

Detailed explanation-3: -Parasitism is a close relationship between species, where one organism, the parasite, lives on or inside another organism, the host, causing it some harm, and is adapted structurally to this way of life.

Detailed explanation-4: -“Parasitism is defined as the relationship between different species in which one organism lives on or in the other organism and benefits from it by causing some harm.”