Which statements are true about the ordered pair (-1,-4) and the system of equations? x-y=3, 7x-y=-3
1 answer:
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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."
