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Microbes in Aquatic Environment

Microbes in Aquatic Environment
Activated sludge undergoes

any of these
Tertiary treatment
Secondary treatment
Primary treatment

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Microbes in Aquatic Environment
Members of all of the following genera of bacteria typically are found in a maturing Winogradsky column except

Chlorobium
Clostridium
Rhodospirillum
Escherichia

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Microbes in Aquatic Environment
All of the following species are considered coliforms except

Salmonella typhi
Enterobacter aerogenes
Escherichia coli
Klebsiella pneumoniae

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Microbes in Aquatic Environment
Chemical precipitation of phosphorus is

secondary treatment
primary treatment
both (a) and (b)
tertiary treatment

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Microbes in Aquatic Environment
The sulfur pearl of Namibia, Thiomargarita namibiensis

is the worlds largest bacterium
Both (a) and (b)
stores high concentrations of nitrate in a huge internal vacuole which takes up 98% of the organisms volume
is the worlds smallest bacterium

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Microbes in Aquatic Environment
Because it can be used with a variety of media and allow a resuscitation step the __________ technique has become the common and often preferred method of evaluating the microbiological characteristics of water.

membrane filtration
Winogradsky
most probable number
MUG

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