mwolford4441 mwolford4441

20-03-2024
Biology

contestada

In an investigation of E. coli, the sample group that ate contaminated lettuce was compared to a control group that did not have exposure to contaminated lettuce. In the sample group, 5 out of 7 people ________.
A) Showed symptoms of illness
B) Developed immunity
C) Were unaffected
D) Contracted a different disease

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