Answer:
Blue
Explanation:
The test is called Simmons citrate agar tests (based on how organisms can utilize citrate). It can be used in differentiating the Enterobacteriaceae.
In this case, the organism is citrate positive if the medium turns blue
primary division of the sea, which includes the whole mass of water subdivided into neritic and oceanic zones; also pertaining to the open sea (open water)
true
