HostThe host is the organism that is harmed my a parasite. The interaction between host and parasite is called parasitism. The parasites live in or on a host, they feed off the host and weaken but don't kill them. They usually weaken the hosts immune system, making them more susceptible to disease. In the example the leech is the parasite, and the person is the host. It connects to parasitism because in parasitism, there is a host and a parasite.
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