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An interaction in which both participating species benefit is called:

  • A Parasitism
  • B Commensalism
  • C Mutualism
  • D Amensalism

Correct answer: C. Mutualism

Explanation: Mutualism is an interspecific interaction where both participating species derive benefit, such as lichens (fungus and algae).

Concept context

How organisms interact with abiotic factors and respond to stress, plus population attributes, growth models, and interspecific interactions such as predation, competition, and mutualism.

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