Microbiology of Soils The groups of bacteria which have the ability to fix nitrogen from air to soil are nonsymbiotic both (a) and (b) symbiotic none of these nonsymbiotic both (a) and (b) symbiotic none of these ANSWER DOWNLOAD EXAMIANS APP
Microbiology of Soils Nitrogen oxidation (nitrification)refers to the sulfur is oxidized to the sulfate form through Thiobacillus bacteria changing of atmospheric nitrogen (N2) to nitrogen compounds None of these conversion of ammonium ions into nitrates through the activities of certain bacteria. sulfur is oxidized to the sulfate form through Thiobacillus bacteria changing of atmospheric nitrogen (N2) to nitrogen compounds None of these conversion of ammonium ions into nitrates through the activities of certain bacteria. ANSWER DOWNLOAD EXAMIANS APP
Microbiology of Soils Nitrifying bacteria can not be isolated directly by the usual techniques employed to isolate hetrotrophic bacteria. The reasons may be due to slow growth fast growth none of these medium growth slow growth fast growth none of these medium growth ANSWER DOWNLOAD EXAMIANS APP
Microbiology of Soils Syntrophism involves no exchange of nutrients among species exchange of nutrients between two species exchange of nutrients among species no exchange of nutrients between two species no exchange of nutrients among species exchange of nutrients between two species exchange of nutrients among species no exchange of nutrients between two species ANSWER DOWNLOAD EXAMIANS APP
Microbiology of Soils The microbial ecosystem of soil includes biotic and abiotic components of soil None of these biotic components of soil abiotic components of soil biotic and abiotic components of soil None of these biotic components of soil abiotic components of soil ANSWER DOWNLOAD EXAMIANS APP
Microbiology of Soils Nitrogen fixation by the microorganisms can be detected by adopting the approach of cultivating the microorganisms in the presence of nitrogen labeled with isotropic nitrogen demonstrating growth in a nitrogen free medium All of these measuring15N2 by mass spectrometer cultivating the microorganisms in the presence of nitrogen labeled with isotropic nitrogen demonstrating growth in a nitrogen free medium All of these measuring15N2 by mass spectrometer ANSWER DOWNLOAD EXAMIANS APP
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