What term describes living in or on another species causing harm?

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Multiple Choice

What term describes living in or on another species causing harm?

Explanation:
Parasitism is when one organism benefits by living on or inside another organism, the host, while harming that host. The parasite gains nutrients, protection, or a suitable habitat, and the host pays the cost in terms of less energy for growth, weaker health, or disease. This contrasts with mutualistic relationships, where both partners benefit, and commensal relationships, where the host is not noticeably harmed. Saprophytic organisms feed on dead organic matter, not living hosts. So the feature of harming a living host while the parasite benefits is what defines this term.

Parasitism is when one organism benefits by living on or inside another organism, the host, while harming that host. The parasite gains nutrients, protection, or a suitable habitat, and the host pays the cost in terms of less energy for growth, weaker health, or disease. This contrasts with mutualistic relationships, where both partners benefit, and commensal relationships, where the host is not noticeably harmed. Saprophytic organisms feed on dead organic matter, not living hosts. So the feature of harming a living host while the parasite benefits is what defines this term.

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