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The prebiotic atomsphere of the Earth wa...

The prebiotic atomsphere of the Earth was of a reducing nature. It was transformed into an oxidixing atomsphere of present day due to the emergence of :

A

angiosperms

B

cyanobacteria

C

eukaryotic algae

D

photosynthetic bacteria

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The correct Answer is:
B
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GRB PUBLICATION-ORIGIN OF LIFE-ORIGIN OF EUKARYOTIC CELL
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  2. According to abiogenesis life originates from:

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  3. Which one does not confirm to the theory of "Biogenesis"?

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  4. Miller -Urey's experiment mixtue had the following except:

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  5. In the early earth, water and CO(2) were produced by the combination o...

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  6. The first fossil evidence of fossil dates back from :

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  7. According to available evidence, life evolved through the process of:

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  8. Who proposed that the first form of life could have come from pre-exis...

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  9. The important gas which was absent during the origin of life on Earth:

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  10. The prebiotic atomsphere of the Earth was of a reducing nature. It was...

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  11. Which gas was probably least abundant in the early atomsphere?

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  12. Choose the wrong statement.

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  13. Which compounds were used by Miller in his experiment for obtaining am...

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  14. Oparin and Haldane proposed:

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  15. Stanley Miller and Urey proved abiotic origin of life by using one of ...

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  16. According to the theory of spontaneous generation :

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  17. Which gas was not used in Miller's experiment?

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  18. Which was the first catalytic molecule during evolution of life?

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  19. Following are the two statements regarding the origin of life : A." ...

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  20. Which of the following is the correct sequence of events in the origin...

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