A) Archeozoic
B) Paleozoic
C) Proterozoic
D) Azoic
Correct Answer: D
Solution :
Azoic | Life is absent |
Archeozoic | Era of invisible life (ie, origin of a cellular organism |
Proterozoic | Era early life (origin of shelled protozoans, coelenterates |
Paleozoic | Ear of ancient life (origin of raw less fish, first arthropods, molluscs |
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