Symbiosis, The act of living together, Commensalism, It is a relationship in which one organism is benefited, but the other is not harm., Mutualism, It is a relationship in which both organisms are benefited, such they become mutually dependent upon each other., Parasitism, It is a relationship in which the parasite is benefited ,but the host may be harm., Competition, It occurs when both organisms having the same needs live in the same area., Predation, It is a relationship between the predator and its prey. The predator injures the prey.

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