Glycolysis doesn’t need oxygen to produce ATP and neither does fermentation which means without oxygen the body is still able to produce ATP. So by that, can an organism still live without oxygen?

Yes, some organisms can still live without oxygen by relying on anaerobic respiration. They use glycolysis and fermentation to produce ATP. However, the amount of ATP produced is significantly less than in aerobic respiration, and long-term survival without oxygen is often challenging.