yulaarmstrong
15.02.2020 •
Mathematics
An environmental (soil) sample obtained from a temperate region was transferred to a liquid growth medium and incubated at 30°C for 24 hours, then transferred to solid growth medium in order to isolate bacteria from the original sample. Following 48 hour incubation at 30°C, the picture of the solid medium shows the results of this experiment. Which of the following statement(s) among A D are true regarding this experiment? A.This plate represents a pure cultu B Isolates A and B are likely the only bacterial types that would have been present in the original environmental sample. A and B are probably the same microorganism D.I dentification of microbial types in the environmental sample could have been attempted without culturing anything. two of of A D are correct F three of A - D are correct
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Ответ:
Missing Question:
The question was missing information. I have found the question online and attaching it here for convenience.
Option D
Explanation:
From the picture, we can see two types of bacteria (i.e. A and B), therefore it is not a pure culture.We can not predict whether any culture has been lost during incubation.A and B are different organisms.Hence, the only correct option is D, which states:
"Identification of microbial types in the environmental sample could have been attempted without culturing anything."
Ответ:
The question is asking for the intersection of the line and the parabola. Where does the blue parabola and the red line meet? at (-1, -3) and (3, 5)
B) x = -1 , x = 3