Loss of carbon through the microbial loop in oligotrophic environments is __________ to/than the loss of carbon through the microbial loop in copiotrophic environments. lesser half approximately equal greater TRUE ANSWER : ? YOUR ANSWER : ?
Coliforms are used as indicator organisms because they are present wherever enteric pathogens are present a testing procedure with great specificity is easy to perform both (a) and (b) None of these TRUE ANSWER : ? YOUR ANSWER : ?
All of the following species are considered coliforms except Escherichia coli Salmonella typhi Enterobacter aerogenes Klebsiella pneumoniae 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. Winogradsky MUG membrane filtration most probable number TRUE ANSWER : ? YOUR ANSWER : ?
The sulfur pearl of Namibia, Thiomargarita namibiensis is the worlds smallest bacterium 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 largest bacterium TRUE ANSWER : ? YOUR ANSWER : ?
Hyphomycete fungi None of these produce nonmotile tetaradiate conidia both (a) and (b) grow in leaves and the infected leaves are the preferred food source for some aquatic insects 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 Winogradsky column Redfield ratio microbial loop 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 lesser greater half approximately equal to TRUE ANSWER : ? YOUR ANSWER : ?
Trickling filter comes under secondary treatment tertiary treatment primary treatment none of these TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following species in water reveal the presence of fecal pollution of human or animal origin? All of these Clostridium perfringens Fecal Streptococci E.coli TRUE ANSWER : ? YOUR ANSWER : ?