Coliforms are used as indicator organisms because None of these a testing procedure with great specificity is easy to perform they are present wherever enteric pathogens are present both (a) and (b) TRUE ANSWER : ? YOUR ANSWER : ?
The rate of flux of oxygen in air is __________ to/than the rate of flux of oxygen in water. greater half lesser approximately equal TRUE ANSWER : ? YOUR ANSWER : ?
All of the following species are considered coliforms except Klebsiella pneumoniae Escherichia coli Salmonella typhi Enterobacter aerogenes TRUE ANSWER : ? YOUR ANSWER : ?
Members of all of the following genera of bacteria typically are found in a maturing Winogradsky column except Clostridium Rhodospirillum Escherichia Chlorobium 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 microbial loop Winogradsky column Redfield ratio Gibbs free energy 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. MUG membrane filtration Winogradsky most probable number TRUE ANSWER : ? YOUR ANSWER : ?
The sulfur pearl of Namibia, Thiomargarita namibiensis Both (a) and (b) stores high concentrations of nitrate in a huge internal vacuole which takes up 98% of the organisms volume is the worlds smallest bacterium is the worlds largest bacterium TRUE ANSWER : ? YOUR ANSWER : ?
Hyphomycete fungi produce nonmotile tetaradiate conidia None of these grow in leaves and the infected leaves are the preferred food source for some aquatic insects both (a) and (b) TRUE ANSWER : ? YOUR ANSWER : ?
Loss of carbon through the microbial loop in oligotrophic environments is __________ to/than the loss of carbon through the microbial loop in copiotrophic environments. greater half lesser approximately equal TRUE ANSWER : ? YOUR ANSWER : ?
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 half lesser greater approximately equal to TRUE ANSWER : ? YOUR ANSWER : ?