Uhm give me a minute haha. In the late 1700’s, Lazzaro Spallanzani likewise tried to disapprove the Spontaneous generation theory by performing a controlled experiment with broth.
He constructed his own experiment by placing broth in each of two separate bottles, boiling the broth in both bottles, then sealing one bottle and leaving the other open.
Spallanzani concluded that while one hour of boiling would sterilize the soup, only a few minutes of boiling was not enough to kill any bacteria initially present, and the microorganisms in the flasks of spoiled soup had entered from the air.
Then, what happened?
Yeah. But wait, have you heard about the theory of Alexander I oparin?
So many theory that opposing Aristotle's experiment huh.
his name sounds familiar to me. Is he the one who believed that life developed from coacervates?
exactly! He's the one who explained that the energy of lightning and ultraviolet rays from the sun caused these gases to combine and form chemical compounds.
As they mixed with rain and hot seas, they formed complex organic molecules which were similar to what living things are made.
So was saying that life on Earth developed through gradual chemical changes of organic molecules?
Yes. in the "primordial soup" which likely existed on Earth four billion years ago.