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==Key Stage 4=====Meaning===A creature [[parasite]] is an [[organism]] that feeds off a [[host]] creature [[organism]] without killing it but also without providing any benefit to the [[host]]. ===About Parasites===: [[Parasite]]s get their [[nutrition] from a [[host]] [[organism]].: Most [[parasite]]s do not kill their [[host]] but feed on them enough to cause the [[host]] to become weak or ill.