Indicator organism, Biology

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a) What are the needsfor an organism to be an indicator organism?


b)  In Australia, National Parks and coastal beaches attract various visitors during holiday periods.  EPA is proposing that all sanitation facilities given in these environmentally sensitive areas should meet their discharge license requirements. As a Civil Engineering student, discuss the significant issues associated with such sanitation facilities and suggest any improvements. Your answer may relate to same facilities in your areas.


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