2007-12-05 06:06:14 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Biology
Initially, oxygen could not have played a role. The primitive earth in which life developed had almost none of it in its atmosphere until photosynthesizing organisms came along to put it there.
2007-12-05 06:10:51 · answer #1 · answered by Yaybob 7 · 0⤊ 0⤋
uncomplicated: organisms moved to different places, the place circumstances have been diverse and for that reason required some variations to thrive there. as quickly as some organisms began with the flexibility to mutate, then it grew to develop right into a race for human beings that did get carry of that potential to evolve, attempting to outdo the different species competing for an identical components.
2016-10-10 08:04:56 · answer #2 · answered by Anonymous · 0⤊ 0⤋
The most obvious is that of "burning" oxygen ...
Originally, oxygen was not readily available to most organisms. It was only later on when plants started producing it as a free agent that that method of respiration became useful.
Speaking of plants - how about the development of photosynthesis?
2007-12-05 06:10:07 · answer #3 · answered by Elana 7 · 0⤊ 0⤋
The stationary organisms turned into plants.
The Mobile organisms turned into animals.
2007-12-05 06:15:14 · answer #4 · answered by Fred F 7 · 0⤊ 0⤋