Coliform bacteria populations are routinely monitored in drinking water supplies,swimming pools,and at beaches because these bacteria
A)are especially toxic to animals.
B)may mutate into severely pathogenic strains.
C)indicate the presence of feces in water.
D)usually live in pesticide-contaminated water.
E)are more difficult to find in water.

Question

Quizplus · Accepted Answer

Coliform bacteria, such as E. coli, are used as indicator organisms because their presence in water suggests that the water has been contaminated by fecal matter, which can also mean the presence of other pathogenic microorganisms. They are not necessarily toxic, prone to dangerous mutations, associated specifically with pesticide-contaminated water, or more difficult to find in water compared to other bacteria.

Coliform Bacteria Populations Are Routinely Monitored in Drinking Water Supplies,swimming