In 1668, Francesco Redi Performed a Series of Experiments on Spontaneous

question 35

Multiple Choice

In 1668, Francesco Redi performed a series of experiments on spontaneous generation. He began by putting similar pieces of meat into eight identical jars. Four jars were left open to the air and four were sealed. He then did the same experiment with one variation: instead of sealing four of the jars completely, he covered them with gauze (the gauze excluded the flies while allowing the meat to be exposed to air) . In both experiments, he monitored the jars and recorded whether or not maggots (young flies) appeared in the meat.
-In both experiments, flies appeared in all of the open jars and only in the open jars. Which one of the following statements is correct?

• A) The experiment was inconclusive because Redi used only one kind of meat.
• B) The experiment was inconclusive because it did not run long enough.
• C) The experiment supports the hypothesis that spontaneous generation occurs in rotting meat.
• D) The experiment supports the hypothesis that maggots arise only from eggs laid by adult flies.

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