Multiple choice

Which of the following was the age of prokaryotic microbes?

  1. Precambrian

  2. Proterozoic

  3. Azoic

  4. Palaeozoic

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The Proterozoic Eon (2.5 billion to 541 million years ago) was dominated by prokaryotic life. The Precambrian is a broader term, Azoic means "no life," and Paleozoic saw the emergence of complex multicellular life.