Mutualism benefits both species, commensalism benefits one, and parasitism harms one while benefiting the other.
Mutualism: A symbiotic relationship where both species benefit. An example is the relationship between bees and flowers.
Commensalism: One species benefits while the other is unaffected. For instance, the interaction between remora fish and sharks.
Parasitism: One organism benefits at the expense of the other, like ticks feeding on dogs.
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