The first prokaryotes were probably aerobic?? true or false??

Question

The first prokaryotes were probably aerobic?? true or false??

Answer 1

Primordial Earth did not have oxygen.  Organisms had to use a different element for the final electron acceptor in cellular metabolism.  The early atmosphere was mostly nitrogen.

Answer 2

According to the evolutionary time scale, false. It is assumed that the earth had no free oxygen in its atmosphere.

Answer 3

False They were anreobic!!

Answer 4

false

Answer 5

False, the environment of early earth did not contain oxygen so the first prokaryotes had to be anaerobic.