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 MUG membrane filtration Winogradsky 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. lesser approximately equal half greater TRUE ANSWER : ? YOUR ANSWER : ?
Coliforms are used as indicator organisms because they are present wherever enteric pathogens are present None of these a testing procedure with great specificity is easy to perform both (a) and (b) TRUE ANSWER : ? YOUR ANSWER : ?
The Redfield ratio is an index of concentration of carbon, hydrogen and oxygen nitrogen, potassium and iron carbon, nitrogen and phosphorous carbon, phosphorous and sulfur 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 : ?
The sulfur pearl of Namibia, Thiomargarita namibiensis is the worlds largest bacterium 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 TRUE ANSWER : ? YOUR ANSWER : ?
The rate of flux of oxygen in air is __________ to/than the rate of flux of oxygen in water. lesser half greater approximately equal 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 E.coli Clostridium perfringens Fecal Streptococci 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 approximately equal to half lesser greater TRUE ANSWER : ? YOUR ANSWER : ?
Trickling filter comes under tertiary treatment secondary treatment primary treatment none of these TRUE ANSWER : ? YOUR ANSWER : ?