Question: which three bacteria needs the most oxygen?

Theo Laftsoglou answered on 13 Nov 2014:

Very nice question! We need oxygen to live and we cannot say who of us needs more as we breath in a control manner according to our needs. Have you noticed that you breath faster when you run? That’s why your cells need more oxygen to produce more energy that allows you to run. The same way we can’t say which bacterium needs more oxygen the most. But the fascinating thing is that some of them need oxygen, some other don’t want it at all as they die when oxygen is present and others are fine with or without it 🙂