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 | | Symbiosis (pl. symbioses) is a interaction between two organisms living together in more or less intimate association or even the merging of two dissimilar organisms. |
 | | The various forms of symbiosis include parasitism, in which the association is disadvantageous or destructive to one of the organisms, mutualism, in which the association is advantageous, or often necessary to one or both and not harmful to either, and commensalism, in which one member of the association benefits while the other is not affected. |
 | | An example of mutual symbiosis is the relationship between anemonefishes of the genus Amphiprion (family, Pomacentridae) that dwell among the tentacles of tropical sea anemones. |
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