What is the symbiotic relationship in which one organism lives in or on another organism (the host) and harms it?

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Multiple Choice

What is the symbiotic relationship in which one organism lives in or on another organism (the host) and harms it?

Explanation:
Parasitism is a relationship in which one organism benefits at the expense of another. Here, the parasite lives on or inside the host and relies on the host for nutrients or shelter, while the host’s health or fitness is reduced. This setup is different from mutualism, where both partners benefit, and from commensalism, where the host is not harmed. It’s also distinct from predation, where one organism kills and consumes the other. Examples include a tick feeding on a dog or a tapeworm inhabiting the intestinal tract.

Parasitism is a relationship in which one organism benefits at the expense of another. Here, the parasite lives on or inside the host and relies on the host for nutrients or shelter, while the host’s health or fitness is reduced. This setup is different from mutualism, where both partners benefit, and from commensalism, where the host is not harmed. It’s also distinct from predation, where one organism kills and consumes the other. Examples include a tick feeding on a dog or a tapeworm inhabiting the intestinal tract.

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