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Evolution — BIOLOGY STD 12 Science — Question

Rajasthan BoardEnglish MediumSTD 12 ScienceBIOLOGYEvolution1 Mark
MCQ
Life originated in:
  • A
    Precambrian era
  • B
    Proterozoic era
  • C
    Mesozoic era
  • D
    Cenozoic era
✓

Answer

  1. Precambrian era

Explanation:

Precambrian is one of the four eras in earth's geological history.

Precambrian actually meant period before the Cambrian period of the Palaeozoic era.

Precambrian is divided into three periods- Azoic (no life), Archaeozoic (invisible life) and Proterozoic (age of early life).

It is believed that life appeared in Archeozoic period of Precambrian era.

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