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    Question

    Identify the correctly matched

    pair:
    A Amensalism - One species is harmed, the other is unaffected Correct Answer Incorrect Answer
    B Parasitism - Both species benefit Correct Answer Incorrect Answer
    C Commensalism - One species benefits, the other is harmed Correct Answer Incorrect Answer
    D Mutualism - One species benefits, the other is harmed Correct Answer Incorrect Answer

    Solution

    (i) Amensalism – A relationship where one species is harmed while the other remains unaffected. Example: Penicillium fungus secretes penicillin, which kills bacteria, but the fungus itself is not affected. (ii) Parasitism – A relationship where one species (parasite) benefits while the other (host) is harmed. Example: Tapeworms in human intestines.\ (iii) Commensalism – A relationship where one species benefits while the other is unaffected. Example: Cattle egrets feeding on insects stirred up by grazing cattle. (iv) Mutualism – A relationship where both species benefit. Example: Pollination by bees, where bees get nectar and plants get pollinated.

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