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Evolution — BIOLOGY STD 12 Science — Question

Rajasthan BoardEnglish MediumSTD 12 ScienceBIOLOGYEvolution1 Mark
MCQ
Earliest reptiles evolved in the ............... period.
  • A
    Ordovician
  • B
    Silurian
  • C
    Devonian
  • D
    Carboniferous
✓

Answer

  1. Carboniferous

Explanation:

Palaeozoic era is also called as “era of ancient life”. It is divided into six periods, which are namely cambrian (520–505 million years ago), ordovician (505–430 million years ago), silurian (430–410 million years ago), devonian (410–360 million years ago), carboniferous (360–285 million years ago) and permian period (285–250 million years ago). 

Carboniferous period (360–285 million years ago) of palaeozoic era is marked by origin of first reptiles that resembled lizards.

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