Biology, 09.10.2020 01:01, DeGeneral770
A scientist maintains a healthy culture of a single species of bacteria in a container. She then introduces a new substance into the bacterial culture. Within a day, most of the bacteria died.
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Which of the following best explains why some of the bacteria survived?
A
They mutated and became a different species after exposure to the substance.
B
They had a genetic variation that gave them resistance to the added substance.
C
They absorbed the substance and broke it down in their digestive systems.
D
They were exposed to the substance long enough to develop a resistance to it.
Answers: 3
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