https://nutradiary.com/digestive-enzymes/
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The relationship with their host is called Digestive Enzymes
mutualistic when organisms perform tasks that are known to be useful for the host parasitic when disadvantageous to the host Other authors define a situation as mutualistic where both benefit and commensal where the unaffected host benefits the symbiont A nutrient exchange may be bidirectional or unidirectional may be context dependent and may occur in diverse ways Microbiota that are expected to be present and that under normal
circumstances do not cause disease are deemed normal flora or normal microbiota.