scientists think the first bacteria on earth where?

Question

a.)aerobic
b.)anaerobic
c.)fatal
d.)oxygen-dependent

Answer 1

B. because the earth "supposedly" didn't contain oxygen.

Answer 2

Sound like a literature learn question. You specify micro organism and fungi, so as that is two of the three widely used communities. i assume you do not learn about the three widely used area names on existence on earth, micro organism and Archaea are unmarried celled, no nucleus and are noted as prokaryotes. Then there are nucleated organisms and also you and me and fungi are in that crew alongside with animals and plant life. So, in case you kill of micro organism and fungi you would possibly want to probable be searching a fashion that would want to kill truly each and every thing on earth. ok, so everybody has the final aspect, all existence might want to die blah blah blah, yet perhaps no longer all existence. you may make a situation the position very almost all existence might want to die, and that would want to go away some human beings round to inform the tale. All existence on earth stocks person-friendly aspects. So, a number of those are DNA, RNA, Ribosomes, particular mandatory proteins. And at the same time as the particular sequences of the those person-friendly aspects would fluctuate, if a mad scientist chanced on some person-friendly link and exploited it ... properly, that's technology fiction, yet hi, cyanide kills because it poisons the merely correct step of ATP production. I mean, there's a reason it really works and that's explainable at a molecular aspect, so why no longer a efficient new poison that binds to ribosomes and stops translation of messenger RNA into protein? There already exists a chemical, puromycin, that kills by technique of causing early protein chain termination by technique of screwing up the ribosome. Have your guy make a version of that that's authentic strong. Then do airborne shipping all over the area to distribute it. for sure the challenge might want to by technique of the synthesis of such huge quantities, so I recommend that he also engineer a clean micro organism that lives contained in the sea. I put in a link for human beings already attempting to make a syntheic bactrial organism. besides, then those insects might want to be the in user-friendly words component left, and they could kill their food, so as that they could die too. So, they have the gene for this new great-antilife product, and with global warming and bigger warmth contained in the oceans little aerosols of this stuff get everywhere and really each and every thing dies. for sure there are continuously some human beings and issues which have some organic mutations, so as that they could live on. and also you'll have as few or as a lot of those as you want on your tale.

Answer 3

Anaerobic.
Scientists think that bacteria put oxygen into the air, but the first ones would have had to have been anaerobic.

Answer 4

Do you know what influences science? philosophy, spirituality, and questioning!

What do you think? Mybe alittle pycology too? What is truth, other than we think or is truthful to our minds? Do we understant the truth around us? Many people think our environment does not speak truth, or speak at all. Mybe our five senses do not speak the truth to us or our very own bodies and mind!

Your question is,...What is truth? or more convincing? or more convient?,... becuase we all know we don't have time,.. we are productive people that are'nt lazy!,... right? We are consumers?