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The Red Queen's Hypothesis describes how this phenomenon results in counter-adaptation, leading to a biological "arms race." The European Cuckoo engages in the brood type of this interaction by laying an egg in the nest of another species. Myco-heterotrophy is a form of this interaction in which a plant unable to undergo photosynthesis establishes this relationship with a fungus. Common examples of this relationship occur between fleas and dogs and between tapeworms and humans. For 10 points, name this relationship between organisms in which one side benefits while causing harm to its host.
The Red Queen's Hypothesis describes how this phenomenon results in counter-adaptation, leading to a biological "arms race.
Parasitism [accept word forms]