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     EduGorilla 
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    All of the following, if true, would cast doubt on the professor’s assertion, EXCEPT :

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    1. Plants in a control group with no music playing in their surroundings grew faster than plants which had a particular type of music playing in their surroundings.
    2. In another set of experiments, conducted years later, the researchers found that plants reacted to music only 33% of the time.
    3. In a lab experiment, when a freshly harvested head of cabbage was dropped in boiling water, control plants started overproduction of plant hormones - also known as phyto-hormones.
    4. Disease causing bacteria attacked plants with almost equal intensity irrespective of whether or not music was playing near the plants.
    5. Several gardeners have tried talking to plants to stimulate growth with inconclusive results.
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