Which of the following organism can survive even in the absence of oxygen?          

Yeast is a facultative anaerobe. Facultative anaerobes are organisms that can switch between aerobic respiration (using oxygen) and fermentation (anaerobic respiration) depending on the availability of oxygen in their environment.

Yeast is a single-celled fungus, and under aerobic conditions (presence of oxygen), it can carry out aerobic respiration, where glucose is broken down into carbon dioxide and water, producing more energy. However, when oxygen is limited or absent, yeast can also undergo fermentation, which is an anaerobic process.