Biology, 16.03.2020 22:02, sarahelisabeth444

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In his experiment on spontaneous generation, Louis Pasteur changed only one thing between his experimental groups: whether or not the neck of the flask was broken. That means that his experiment was .

A. controlled

B. randomized

C. testing a hypothesis

D. answering a well-defined question

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In his experiment on spontaneous generation, Louis Pasteur changed only one thing b...