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11 December, 18:36

What new piece of evidence, supporting biogenesis, was provided by Pasteur's experiment? A) S-necked flasks prevented both microorganisms from contaminating the broth and air from entering the flasks. B) S-necked flasks prevented microorganisms from contaminating the broth, even though air still entered the flasks. C) Pasteurs experiments with S-necked flasks supported the hypothesis that microorganisms are not found in the air. D) Pasteur set up an experiment with both open and sealed flasks, thus employing a control or standard of comparison.

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  1. 11 December, 19:36
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    What new piece of evidence, supporting biogenesis, was provided by Pasteur's experiment?

    B) S-necked flasks prevented microorganisms from contaminating the broth, even though air still entered the flasks.
  2. 11 December, 19:54
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    Hello,

    The answer would be D. Pasteur set up an experiment with both open and sealed flasks, thus employing a control or standard of comparison.
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