A scientist observes that even after sterilizing a broth, cells reappear in the broth over time. The scientist then asks: “Why do cells reappear in the broth after sterilization?” and designs/conducts an experiment. Considering this, appropriately label each of the following blanks as either a “prediction, hypothesis or theory.”

________________: Cells will only appear in the broth exposed to a source of preexisting cells.

________________: Cells appear only when preexisting cells grow & divide; therefore, cells only appear in exposed broths.

________________: All organisms consist of cells & all cells come from preexisting cells.

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