microbiology

you've embarked on an ambitious research project to create life in a test tube.You boil up a rich mixture of yeast extract and amino acids in a flask along with a sprinkling of inorganic salts known to be essential for life.You sealed the flask and allow it to cool.After several months,the liquid is as clear as ever.And there are no signs of life.a friend suggest that excluding air was mistake since most life as we know requires oxygen.You repeat the experiment but this time you leave the flask open to the atmosphere.To your great delight,the liquid becomes cloudy after few days and under microscope you see small cells growing and dividing.
Q-1 Does this experiment prove that you managed to generate a novel life form?
Q-2 How might you redesign your experiment to allow air into the flask yet eliminate the possibility that contamination is the explanation for results