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
1 answer:
Missing Question:
The question was missing information. I have found the question online and attaching it here for convenience.
Answer:
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."
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Answer:
The possible midpoints are (5.5,8) and (5.5,3)
Step-by-step explanation:
Given
Required
Determine the midpoint of DE
First, we need to determine the coordinates of E
If E is to the right of DE;
Hence, the coordinate is (11,16)
Else:
Hence, the coordinate is (11,6)
<em>The possible midpoints are (5.5,8) and (5.5,3)</em>