Louis Pasteur helped to disprove the theory of spontaneous generation primarily through his experiments with covered and uncovered meat, which demonstrated that maggots come from eggs laid by flies, not from the meat itself. This experiment showed that life does not spontaneously arise from non-living matter; instead, it requires pre-existing life forms. Additionally, Pasteur conducted experiments using sterilized liquids, showing that they would only develop bacterial growth if exposed to existing bacteria, further supporting the idea that life comes from life rather than arising spontaneously.
Therefore, the correct statement regarding Pasteur's contribution to disproving spontaneous generation is:
He examined covered and uncovered meat and determined that maggots come from eggs.