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Microbes in Aquatic Environment

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

Enterobacter aerogenes
Escherichia coli
Salmonella typhi
Klebsiella pneumoniae

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

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

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Microbes in Aquatic Environment
Which of the following species in water reveal the presence of fecal pollution of human or animal origin?

Fecal Streptococci
All of these
Clostridium perfringens
E.coli

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Microbes in Aquatic Environment
The rate of flux of oxygen in air is __________ to/than the rate of flux of oxygen in water.

greater
lesser
half
approximately equal

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Microbes in Aquatic Environment
Metabolism of dissolved organic material released by phytoplankton allows heterotrophic bacteria to become part of the particulate organic matter that is passed up the food web to be metabolized and released as mineral elements and CO2 at each transfer. This sentence describes the

Gibbs free energy
Redfield ratio
microbial loop
Winogradsky column

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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

Clostridium
Chlorobium
Escherichia
Rhodospirillum

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