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immune effector process interspecies interaction between organisms response to external stimulus response to biotic stimulus detection of stimulus cell adhesion cell activation leukocyte proliferation anatomical structure development cellular developmental process response to stress antigen processing and presentation immune response leukocyte mediated cytotoxicity immune effector process interspecies interaction between organisms response to external stimulus response to biotic stimulus detection of stimulus cell adhesion cell activation leukocyte proliferation anatomical structure development cellular developmental process response to stress antigen processing and presentation immune resimmune response leukocyte leukocyte mediated cytotoxicity immune effimmune effector process interspeciinterspecies interaction between organisms response tresponse to external stimulus response tresponse to biotic stimulus detection detection of stimulus cell adhescell adhesion cell activcell 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