NEET 2007 Biology question
Not in NEET syllabus
Which one of the following is not a bioindicator of water pollution?
Answer: (4)
Solution
Bioindicators of water pollution are organisms that live and thrive in water that is rich in organic wastes and poor in dissolved oxygen: sewage fungus (Sphaerotilus), sludge-worms (Tubifex) and blood-worms (Chironomus larvae) are all typical of polluted water. Stone flies
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