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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 neither helped nor harmed?

  • A Mutualism
  • B Parasitism
  • C Amensalism
  • D Commensalism
Correct Answer: Option D — Commensalism
Explanation:
Commensalism is a symbiotic relationship where one organism benefits while the other is neither harmed nor helped such as barnacles attaching to whales for transport.
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