In the late 1800's Louis Pasture put an end to this belief when he proved those maggots came from eggs deposited on the decaying meat and such. That is, until the evolutionist needed it. Traditional, general evolution says ALL life on earth today evolved. Keep an eye on this and see if something starts wiggling. I didn't take the oxygen out of my jar, and we don't have the right gases and amino acids and such.
Evolutionists say there had to have been an oxygen-free atmosphere for life to have begun.
So we won't see any life spontaneously appear today. That's not right. We've got to have an ozone layer to protect any life form from ultraviolet light rays. U.V. rays kill in less than a second. Oxygen is needed for an ozone layer.