Which of the following species in water reveal the presence of fecal pollution of human or animal origin? All of these E.coli Clostridium perfringens Fecal Streptococci TRUE ANSWER : ? YOUR ANSWER : ?
Members of all of the following genera of bacteria typically are found in a maturing Winogradsky column except Clostridium Rhodospirillum Chlorobium Escherichia TRUE ANSWER : ? YOUR ANSWER : ?
Chemical precipitation of phosphorus is secondary treatment tertiary treatment both (a) and (b) primary treatment TRUE ANSWER : ? YOUR ANSWER : ?
__________ is an environment like __________ where microorganisms are functioning in an extremely thin film of water and where oxygen-containing air is close to them. high oxygen diffusion environment; lakes high oxygen diffusion environment; soils low oxygen diffusion environment; soils low oxygen diffusion environment; lakes TRUE ANSWER : ? YOUR ANSWER : ?
The sulfur pearl of Namibia, Thiomargarita namibiensis Both (a) and (b) is the worlds largest bacterium is the worlds smallest bacterium stores high concentrations of nitrate in a huge internal vacuole which takes up 98% of the organisms volume TRUE ANSWER : ? YOUR ANSWER : ?
Coliforms are used as indicator organisms because they are present wherever enteric pathogens are present both (a) and (b) a testing procedure with great specificity is easy to perform None of these TRUE ANSWER : ? YOUR ANSWER : ?
All of the following species are considered coliforms except Escherichia coli Enterobacter aerogenes Salmonella typhi Klebsiella pneumoniae TRUE ANSWER : ? YOUR ANSWER : ?
Activated sludge undergoes Primary treatment any of these Tertiary treatment Secondary treatment TRUE ANSWER : ? YOUR ANSWER : ?
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. most probable number membrane filtration Winogradsky MUG TRUE ANSWER : ? YOUR ANSWER : ?
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 microbial loop Winogradsky column Redfield ratio TRUE ANSWER : ? YOUR ANSWER : ?