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Biology Medium FPSC PPSC NTS Uploaded: 14 Jul 2026

What is the term for the symbiotic relationship where one organism benefits and the other is harmed?

  • A Mutualism
  • B Commensalism
  • C Amensalism
  • D Parasitism
Correct Answer: Option D — Parasitism
Explanation:
Parasitism is a symbiotic relationship where one organism the parasite benefits at the expense of the other the host causing it harm such as tapeworms in the intestines.
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