Question

Arrange the following organisms in a correct sequence based on chemical origin of life given by Oparin and Haldane during the course of evolution:
(A) Chemoautotrophic organisms
(B) Eukaryotes
(C) Anaerobic heterotrophs
(D) Oxygenic autotrophic organisms

• A. A $\to$B $\to$C $\to$D
• B. C $\to$A $\to$D $\to$B
• C. C $\to$A $\to$B $\to$D
• D. B $\to$A $\to$C $\to$D

Answer 1

The correct option is B C $\to$A $\to$D $\to$B

According to chemical origin of life given by oparin and Haldane, the correct sequence of organisms during the course of evolution is:
Anaerobic heterotrophs $\to$ Chemoautotrophic organisms $\to$ Oxygenic autotrophic organisms $\to$ Eukaryotes
i.e., C $\to$A $\to$D $\to$B