Which one of the following is a fresh water indicator organism?
Tubifex
Daphnia
Sludge worm
All of the above
A
All of the above
B
Tubifex
C
Daphnia
D
Sludge worm
Open in App
Solution
Verified by Toppr
Water pollution is the major cause of several chronic diseases. The potable water must be treated to get rid of certain harmful microorganism. Daphnia, trout fishes, and larvae of stoneflies are the example of freshwater indicator and tubifex, E. Coli, sewage fungus, sludge worms, blood worms are the indicator of polluted water.
So, the correct answer is option B.
Was this answer helpful?
0
Similar Questions
Q1
Which one of the following is a fresh water indicator organism?
View Solution
Q2
Which one of the following is a fresh water sponge?
View Solution
Q3
Which of the following is the primary source of fresh water on land?
View Solution
Q4
Which one of the following mollusc is cultured in fresh water for producing pearls?