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Includes definitions AND examples, so what could be the correct answer might not count as a match--just find the other copy of the same word and drag to your answer.


the close relationship that exists when two or more species live together


the relationship in which one organism benefits and the other organism is neither harmed nor helped


the relationship between two or more organisms that live closely together and both benefit from each other


the relationship in which one organism benefits while the other is harmed


ex: flower and bee


ex: shark and remora


ex: tick and dog


ex: clownfish ("Nemo") and anemone


ex: mosquito and you

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