Which bacteria, Eubacteria or Archabacteria, has existed on earth for at least 3 billion years?

Question

Biology

Howard Clayton

7 January, 21:32

Which bacteria, Eubacteria or Archabacteria, has existed on earth for at least 3 billion years?

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Answers (2)

Know the Answer?

Gideon Lopez · Answer 1

It is Eubacteria that was and has lived the longest

Lukas Orozco · Answer 2

It is of concern by many biologists that complex animals evolved from simple ones. Thus, we look for the simplest organisms while telling if which one existed earlier. The simpler one is Eucabacteria, which does not has cell wall.