The final outcome of most host-parasite relationships depends on

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The final outcome of most host-parasite relationships depends on all of the choices given. The number of organisms present in or on the host, the virulence of the organism, and the host's defenses all play a role in determining the outcome of the relationship. A high number of parasites or a virulent strain can overwhelm the host's defenses, leading to disease or even death. Conversely, a resilient host with strong defenses can often successfully fight off parasites or limit their impact on the body.

The Final Outcome of Most Host-Parasite Relationships Depends on