Common indicator organisms of water pollution is
A. Escherichia coli
B. Cholera vibrio
C. Salmonella typhi
D. Entamoeba histolytica
Answer: Option A
Solution (By Examveda Team)
Common indicator organism of water pollution is Escherichia coli.Escherichia coli also known as E. coli is a Gram-negative, facultatively anaerobic, rod-shaped, coliform bacterium of the genus Escherichia that is commonly found in the lower intestine of warm-blooded organisms.
The bacteria, typically transmitted through contaminated food or drinking water, adheres to the intestinal lining, where it secretes either of two types of enterotoxins, leading to watery diarrhea.

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