Alexander Fleming Observed a Colony of Mold That Inhibited the Growth

question 89

Multiple Choice

Alexander Fleming observed a colony of mold that inhibited the growth of nearby bacteria. Which of the following was his hypothesis?

• A)The mold used all of the nutrients so that the bacteria couldn't grow.
• B)The mold produced a substance that killed nearby bacteria.
• C)The bacteria changed their DNA when growing near the mold.
• D)The mold was dead.

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