You're making a hypothesis for the Redi and Pasteur experiments?
Redi's experiment regarded maggots in jars with meat. And Pasteur's experiments involved nutrient broth culturing bacteria or not.
So:
If the jars containing meat are covered, then maggots will not grow or hatch inside because life cannot form without life and the covers would block flies.
If the nutrient broth is boiled before being sealed, then the uncovered broth will breed bacteria but the sealed broth will not because the bacteria have all been killed from heat and cannot reproduce.
or something along those lines. Eh.
