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#Question id: 18224


Proterozoic era characterized by___
a) Origin of life
b) Fossils of blue green algae
c) Most invertebrate evolved
d) First gymnosperm
e) Abundance of marine algae

#SCPH28 | Zoology
  1. A and D
  2. B and C
  3. C and E
  4. A, C and E

Answer:- Option(s): 2


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