Q. The first living beings were

A) Chemoheterotrophs
B) Chemoautotrophs
C) Oxygenic photoautotrophs
D) Anoxygenic photoautotrophs
Explanation

The first living beings were chemoheterotrophs.

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.

Want more practice?
Practice Evolution MCQs