MarksRiser
MarksRiser
Zoology-Origin of Life

NEET Zoology Origin of Life MCQ Question

Type: MCQ-conceptual-Hard-Class 12

Which of the following statements about the origin of life is correct?

A

The first cellular forms of life likely originated around 2000 million years ago from non-living molecules through biogenesis.

B

All living organisms on earth were created simultaneously and have remained unchanged since their creation.

C

The early earth had a rich atmosphere filled with oxygen, which supported the immediate evolution of complex life forms.

D

The Big Bang theory describes how life originated from a singular explosion of living cells billions of years ago.

Correct Answer

Option A

Detailed Explanation

The correct statement reflects the NCERT context which indicates that the first cellular forms of life arose from non-living molecules through biogenesis approximately 2000 million years ago. Options B and C misrepresent the theories of life origin, while option D incorrectly attributes the origin of life to the Big Bang.

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