Question

The presence of a particular group of bacteria in water bodies indicates contamination. Identify the group.

Answer 1

The  particular group of bacteria, the presence of which can indicate contamination in the water body are coliform bacteria such as Escherichia coli and some non-coliform bacteria, such as Streptococcus bovis and certain clostridia

Answer 2

Answer:

E.coli  and coliform are the bacteria that indicate the contamination in water bodies.

Explanation:

Eschericia coli or E.coli and coliform are the bacteria that indicate contamination in water bodies.

The form of contamination is majorly faecal contamination.

E.coli are gram negative, rod shaped bacteria.

Coliform are also rod shaped non spore forming gram negative bacteria.