The sulfur pearl of Namibia, Thiomargarita namibiensis is the worlds largest 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 smallest bacterium TRUE ANSWER : ? YOUR ANSWER : ?
All of the following species are considered coliforms except Enterobacter aerogenes Salmonella typhi Escherichia coli Klebsiella pneumoniae TRUE ANSWER : ? YOUR ANSWER : ?
Chemical precipitation of phosphorus is primary treatment both (a) and (b) secondary treatment tertiary treatment TRUE ANSWER : ? YOUR ANSWER : ?
Coliforms are used as indicator organisms because they are present wherever enteric pathogens are present None of these both (a) and (b) a testing procedure with great specificity is easy to perform TRUE ANSWER : ? YOUR ANSWER : ?
Trickling filter comes under primary treatment tertiary treatment none of these secondary treatment 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 greater half lesser approximately equal to 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 Winogradsky MUG membrane filtration 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 : ?
The rate of flux of oxygen in air is __________ to/than the rate of flux of oxygen in water. half approximately equal greater lesser TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following species in water reveal the presence of fecal pollution of human or animal origin? E.coli All of these Fecal Streptococci Clostridium perfringens TRUE ANSWER : ? YOUR ANSWER : ?