Answer:
minerals (calcium and phosphorus)
A positive result in the citrate test is demonstrated by the ph going up and the medium changing from Green to Blue.
The citrate check displays a bacterial isolate for the capacity to make use of citrate as its carbon and strength source. A advantageous diagnostic test rests at the generation of alkaline by-products of citrate metabolism. the subsequent increase inside the pH of the medium is verified by means of the color trade of a pH indicator.
Citrate trying out is used to determine the potential of the bacteria to apply sodium citrate as the only source of carbon and inorganic ammonium hydrogen phosphate as a source of nitrogen. The citrate usage test is viable only if the organisms are capable of fermenting citrate.
A advantageous result is color trade from green to blue and/or boom. which means citrate is applied. micro organism that use citrate converts the ammonium which alkalizes the agar.
Simplest micro organism that may utilize citrate as the sole carbon and electricity supply may be able to grow at the Simmons citrate medium, as a result a citrate-terrible take a look at tradition may be sincerely indistinguishable from an uninoculated slant. E. coli is citrate bad.
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I would think the answer would be Afferent Neurons. These neurons receive signals from from outside stimuli that we pick up through our skin ( of the hand for example) and that signal is transmitted to the central nervous system. Hope this helps!
The answer is B. The reason is because in an RNA strand, A turns into U.