NEET Biology question

BiologyEvolutionNEET

Following are the two statements regarding the origin of life. (A) The earliest organisms that appeared on the earth were non-green and presumably anaerobes. (B) The first autotrophic organisms were the chemoautotrophs that never released oxygen. Of the above statements which one of the following options is correct?

Answer: (A)

Solution

The earliest organisms on earth were indeed non-green, anaerobic heterotrophs, since the primitive atmosphere lacked free oxygen, making statement (A) true, and the first autotrophs were

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Question ID VK-121652