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Microbes in Aquatic Environment

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

Clostridium
Chlorobium
Rhodospirillum
Escherichia

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Microbes in Aquatic Environment
Loss of carbon through the microbial loop in oligotrophic environments is __________ to/than the loss of carbon through the microbial loop in copiotrophic environments.

half
greater
approximately equal
lesser

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Microbes in Aquatic Environment
The Redfield ratio is an index of concentration of

nitrogen, potassium and iron
carbon, hydrogen and oxygen
carbon, phosphorous and sulfur
carbon, nitrogen and phosphorous

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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
Activated sludge undergoes

any of these
Primary treatment
Tertiary treatment
Secondary treatment

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Microbes in Aquatic Environment
The amount of oxygen dissolved in hypolimnion water in the winter is __________ to/than the amount of oxygen dissolved in hypolimnion water in the summer

lesser
half
greater
approximately equal to

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