Francesco Redi: disproved spontaneous generation generation by setting up jars of meat on a table. the 1st one was uncovered. the 2nd one was covered with gauze and the 3rd was covered with thick parchment.results:
1. was infested with flies and maggots
2. had fly eggs on the gauze but the meat was unharmed
3. no flies were attracted with this experiment, the idea that flies evolved from meat was no longer believed
Louis Pasteur: disproved spontaneous generation by setting up flasks of broiled broth and some were covered and some werent. the ones that were covered were not infested with bacteria but the ones not covered were infested with bacteria. though some scientists still believed in spontaneous generation as a possiblity. his final experiment involved broiled broth in a flask but was curved at a zig zag motion and was uncovered.results: the bacteria settled only on the edges or curves of the flask but no bacteria was infested with bacteria. this experiment was left out and never put away for 4 yrs and the broth still was never infested. this disproves spontaneous generation (the belief that living things can come from nonliving things)