The evolution of unicellular organisms occurred in which era?

  • A
    Proterozoic
  • B
    Palaeozoic
  • C
    Archaeozoic
  • D
    Mesozoic

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Abiogenesis means

The presence of $NaCl$ in body fluids suggests that life originated in:

The schematic representation of Miller's experiment is given below. What are $P$ and $Q$?

Which of the following was $NOT$ present in a free form during the origin of life?

Which of the following was absent in the atmosphere of primitive Earth?

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