the first organism was an anaerobic, what does this mean?

Formerly Peter S2014-12-08T10:45:01Z

The organism obtained ATP by anaerobic respiration - in the absence of O2.

Bill2014-12-08T11:15:24Z

Anaerobic means it didn't need oxygen to live.

Trenton2014-12-08T11:20:08Z

it doesnt use oxygen!!!