Q. The Redfield ratio is an index of concentration of

View solution

Q. Removal of solids is generally considered as a

View solution

Q. All of the following species are considered coliforms except

View solution

Q. The sulfur pearl of Namibia, Thiomargarita namibiensis

View solution

Q. Chemical precipitation of phosphorus is

View solution

Q. Coliforms are used as indicator organisms because

View solution

Q. Hyphomycete fungi

View solution

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

View solution

Q. 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

View solution

Q. 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

View solution

Q. Members of all of the following genera of bacteria typically are found in a maturing Winogradsky column except

View solution

Q. 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.

View solution

Q. Trickling filter comes under

View solution

Q. Which of the following species in water reveal the presence of fecal pollution of human or animal origin?

View solution

Q. Activated sludge undergoes

View solution

Q. The rate of flux of oxygen in air is __________ to/than the rate of flux of oxygen in water.

View solution

Q. __________ is an environment like __________ where microorganisms are functioning in an extremely thin film of water and where oxygen-containing air is close to them.

View solution