Biology, 15.07.2019 22:00, syrai1254

Aflask filled with water and organic molecules was left open to the air for an hour and then was tightly stoppered. after being allowed to sit for a week, the flask was reopened and checked for living organisms. only anaerobic bacteria were found living in it. which of the following can be assumed about the conditions within the flask during the week it sat tightly stoppered?

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Aflask filled with water and organic molecules was left open to the air for an hour and then was tig...