An animal in which a parasite lives on or in is called a host. The host provides the necessary environment and resources for the parasite to survive and reproduce. This relationship can be harmful to the host, as the parasite may draw nutrients or cause disease.
Because, the animal acts as a host for the parasite. Also, the parasite acts as a guest so it's only right that the animal/plant is called the host.
Host is an organism on or in which parasite live
A parasite.
If the parasite you are thinking about is a tape worm, then this lives in the host animal's intestinal tract.
It is called a parasite it is actually called a predator
Intracellular parasite-- An organism which can only feed and live within the cell of a different animal.
The habitat of a parasite is called a host. The host provides the environment for the parasite to live, feed, and reproduce.
Parasites. Animals that live on other animals aren't always parasites. It depends on the type of symbiosis is taking place; commensalism (the animal obtains food and shelter from the other animal without hurting or helping it), mutualism (both animals benefit, sort of a 'you scratch my back i'll scratch yours' kind of thing), and parasitism (the name speaks for itself).
Depends on the relationship - but normally a "parasite"
If you count bacteria and viruses, a virus tends to feed off bacteria.
The animal that benefits in parasitism is the parasite, and the animal that is negatively effected is the host.
Placental mammals.