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Microbes in Aquatic Environment

Microbes in Aquatic Environment
Removal of solids is generally considered as a

Tertiary treatment
None of these
Secondary treatment
Primary treatment

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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
lesser
greater
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

microbial loop
Redfield ratio
Winogradsky column
Gibbs free energy

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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

Rhodospirillum
Chlorobium
Clostridium
Escherichia

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

Enterobacter aerogenes
Salmonella typhi
Klebsiella pneumoniae
Escherichia coli

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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.

Winogradsky
MUG
membrane filtration
most probable number

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